21000295710

素因数分解:

$2^1\times 3^7\times 5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:371

約数の個数: 256

約数和(自身を含む): 58792504320

約数和(自身を除く): 37792208610

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 43, 45, 54, 81, 86, 90, 129, 135, 137, 162, 163, 215, 243, 258, 270, 274, 326, 387, 405, 411, 430, 486, 489, 645, 685, 729, 774, 810, 815, 822, 978, 1161, 1215, 1233, 1290, 1370, 1458, 1467, 1630, 1935, 2055, 2187, 2322, 2430, 2445, 2466, 2934, 3483, 3645, 3699, 3870, 4110, 4374, 4401, 4890, 5805, 5891, 6165, 6966, 7009, 7290, 7335, 7398, 8802, 10449, 10935, 11097, 11610, 11782, 12330, 13203, 14018, 14670, 17415, 17673, 18495, 20898, 21027, 21870, 22005, 22194, 22331, 26406, 29455, 31347, 33291, 34830, 35045, 35346, 36990, 39609, 42054, 44010, 44662, 52245, 53019, 55485, 58910, 62694, 63081, 66015, 66582, 66993, 70090, 79218, 88365, 94041, 99873, 104490, 105135, 106038, 110970, 111655, 118827, 126162, 132030, 133986, 156735, 159057, 166455, 176730, 188082, 189243, 198045, 199746, 200979, 210270, 223310, 237654, 265095, 299619, 313470, 315405, 318114, 332910, 334965, 356481, 378486, 396090, 401958, 470205, 477171, 499365, 530190, 567729, 594135, 599238, 602937, 630810, 669930, 712962, 795285, 940410, 946215, 954342, 960233, 998730, 1004895, 1135458, 1188270, 1205874, 1431513, 1498095, 1590570, 1703187, 1782405, 1808811, 1892430, 1920466, 2009790, 2385855, 2838645, 2863026, 2880699, 2996190, 3014685, 3406374, 3564810, 3617622, 4294539, 4771710, 4801165, 5109561, 5426433, 5677290, 5761398, 6029370, 7157565, 8515935, 8589078, 8642097, 9044055, 9602330, 10219122, 10852866, 12883617, 14315130, 14403495, 15328683, 16279299, 17031870, 17284194, 18088110, 21472695, 25547805, 25767234, 25926291, 27132165, 28806990, 30657366, 32558598, 42945390, 43210485, 48837897, 51095610, 51852582, 54264330, 64418085, 76643415, 77778873, 81396495, 86420970, 97675794, 128836170, 129631455, 153286830, 155557746, 162792990, 233336619, 244189485, 259262910, 388894365, 466673238, 488378970, 700009857, 777788730, 1166683095, 1400019714, 2100029571, 2333366190, 3500049285, 4200059142, 7000098570, 10500147855, 21000295710]

約数ペア:

[(1, 21000295710), (2, 10500147855), (3, 7000098570), (5, 4200059142), (6, 3500049285), (9, 2333366190), (10, 2100029571), (15, 1400019714), (18, 1166683095), (27, 777788730), (30, 700009857), (43, 488378970), (45, 466673238), (54, 388894365), (81, 259262910), (86, 244189485), (90, 233336619), (129, 162792990), (135, 155557746), (137, 153286830), (162, 129631455), (163, 128836170), (215, 97675794), (243, 86420970), (258, 81396495), (270, 77778873), (274, 76643415), (326, 64418085), (387, 54264330), (405, 51852582), (411, 51095610), (430, 48837897), (486, 43210485), (489, 42945390), (645, 32558598), (685, 30657366), (729, 28806990), (774, 27132165), (810, 25926291), (815, 25767234), (822, 25547805), (978, 21472695), (1161, 18088110), (1215, 17284194), (1233, 17031870), (1290, 16279299), (1370, 15328683), (1458, 14403495), (1467, 14315130), (1630, 12883617), (1935, 10852866), (2055, 10219122), (2187, 9602330), (2322, 9044055), (2430, 8642097), (2445, 8589078), (2466, 8515935), (2934, 7157565), (3483, 6029370), (3645, 5761398), (3699, 5677290), (3870, 5426433), (4110, 5109561), (4374, 4801165), (4401, 4771710), (4890, 4294539), (5805, 3617622), (5891, 3564810), (6165, 3406374), (6966, 3014685), (7009, 2996190), (7290, 2880699), (7335, 2863026), (7398, 2838645), (8802, 2385855), (10449, 2009790), (10935, 1920466), (11097, 1892430), (11610, 1808811), (11782, 1782405), (12330, 1703187), (13203, 1590570), (14018, 1498095), (14670, 1431513), (17415, 1205874), (17673, 1188270), (18495, 1135458), (20898, 1004895), (21027, 998730), (21870, 960233), (22005, 954342), (22194, 946215), (22331, 940410), (26406, 795285), (29455, 712962), (31347, 669930), (33291, 630810), (34830, 602937), (35045, 599238), (35346, 594135), (36990, 567729), (39609, 530190), (42054, 499365), (44010, 477171), (44662, 470205), (52245, 401958), (53019, 396090), (55485, 378486), (58910, 356481), (62694, 334965), (63081, 332910), (66015, 318114), (66582, 315405), (66993, 313470), (70090, 299619), (79218, 265095), (88365, 237654), (94041, 223310), (99873, 210270), (104490, 200979), (105135, 199746), (106038, 198045), (110970, 189243), (111655, 188082), (118827, 176730), (126162, 166455), (132030, 159057), (133986, 156735)]