21402360

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1$

素因数の和:195

約数の個数: 256

約数和(自身を含む): 86400000

約数和(自身を除く): 64997640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 19, 20, 21, 24, 27, 28, 30, 35, 36, 38, 40, 42, 45, 54, 56, 57, 60, 63, 70, 72, 76, 84, 90, 95, 105, 108, 114, 120, 126, 133, 135, 140, 149, 152, 168, 171, 180, 189, 190, 210, 216, 228, 252, 266, 270, 280, 285, 298, 315, 342, 360, 378, 380, 399, 420, 447, 456, 504, 513, 532, 540, 570, 596, 630, 665, 684, 745, 756, 760, 798, 840, 855, 894, 945, 1026, 1043, 1064, 1080, 1140, 1192, 1197, 1260, 1330, 1341, 1368, 1490, 1512, 1596, 1710, 1788, 1890, 1995, 2052, 2086, 2235, 2280, 2394, 2520, 2565, 2660, 2682, 2831, 2980, 3129, 3192, 3420, 3576, 3591, 3780, 3990, 4023, 4104, 4172, 4470, 4788, 5130, 5215, 5320, 5364, 5662, 5960, 5985, 6258, 6705, 6840, 7182, 7560, 7980, 8046, 8344, 8493, 8940, 9387, 9576, 10260, 10430, 10728, 11324, 11970, 12516, 13410, 14155, 14364, 15645, 15960, 16092, 16986, 17880, 17955, 18774, 19817, 20115, 20520, 20860, 22648, 23940, 25032, 25479, 26820, 28161, 28310, 28728, 31290, 32184, 33972, 35910, 37548, 39634, 40230, 41720, 42465, 46935, 47880, 50958, 53640, 56322, 56620, 59451, 62580, 67944, 71820, 75096, 76437, 79268, 80460, 84930, 93870, 99085, 101916, 112644, 113240, 118902, 125160, 127395, 140805, 143640, 152874, 158536, 160920, 169860, 178353, 187740, 198170, 203832, 225288, 237804, 254790, 281610, 297255, 305748, 339720, 356706, 375480, 382185, 396340, 475608, 509580, 535059, 563220, 594510, 611496, 713412, 764370, 792680, 891765, 1019160, 1070118, 1126440, 1189020, 1426824, 1528740, 1783530, 2140236, 2378040, 2675295, 3057480, 3567060, 4280472, 5350590, 7134120, 10701180, 21402360]

約数ペア:

[(1, 21402360), (2, 10701180), (3, 7134120), (4, 5350590), (5, 4280472), (6, 3567060), (7, 3057480), (8, 2675295), (9, 2378040), (10, 2140236), (12, 1783530), (14, 1528740), (15, 1426824), (18, 1189020), (19, 1126440), (20, 1070118), (21, 1019160), (24, 891765), (27, 792680), (28, 764370), (30, 713412), (35, 611496), (36, 594510), (38, 563220), (40, 535059), (42, 509580), (45, 475608), (54, 396340), (56, 382185), (57, 375480), (60, 356706), (63, 339720), (70, 305748), (72, 297255), (76, 281610), (84, 254790), (90, 237804), (95, 225288), (105, 203832), (108, 198170), (114, 187740), (120, 178353), (126, 169860), (133, 160920), (135, 158536), (140, 152874), (149, 143640), (152, 140805), (168, 127395), (171, 125160), (180, 118902), (189, 113240), (190, 112644), (210, 101916), (216, 99085), (228, 93870), (252, 84930), (266, 80460), (270, 79268), (280, 76437), (285, 75096), (298, 71820), (315, 67944), (342, 62580), (360, 59451), (378, 56620), (380, 56322), (399, 53640), (420, 50958), (447, 47880), (456, 46935), (504, 42465), (513, 41720), (532, 40230), (540, 39634), (570, 37548), (596, 35910), (630, 33972), (665, 32184), (684, 31290), (745, 28728), (756, 28310), (760, 28161), (798, 26820), (840, 25479), (855, 25032), (894, 23940), (945, 22648), (1026, 20860), (1043, 20520), (1064, 20115), (1080, 19817), (1140, 18774), (1192, 17955), (1197, 17880), (1260, 16986), (1330, 16092), (1341, 15960), (1368, 15645), (1490, 14364), (1512, 14155), (1596, 13410), (1710, 12516), (1788, 11970), (1890, 11324), (1995, 10728), (2052, 10430), (2086, 10260), (2235, 9576), (2280, 9387), (2394, 8940), (2520, 8493), (2565, 8344), (2660, 8046), (2682, 7980), (2831, 7560), (2980, 7182), (3129, 6840), (3192, 6705), (3420, 6258), (3576, 5985), (3591, 5960), (3780, 5662), (3990, 5364), (4023, 5320), (4104, 5215), (4172, 5130), (4470, 4788)]