21686870010

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{337}}^1\times {\mathrm{1051}}^1$

素因数の和:1568

約数の個数: 128

約数和(自身を含む): 56630456064

約数和(自身を除く): 34943586054

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 157, 195, 314, 337, 390, 471, 674, 785, 942, 1011, 1051, 1570, 1685, 2022, 2041, 2102, 2355, 3153, 3370, 4082, 4381, 4710, 5055, 5255, 6123, 6306, 8762, 10110, 10205, 10510, 12246, 13143, 13663, 15765, 20410, 21905, 26286, 27326, 30615, 31530, 40989, 43810, 52909, 61230, 65715, 68315, 81978, 105818, 131430, 136630, 158727, 165007, 204945, 264545, 317454, 330014, 354187, 409890, 495021, 529090, 687817, 708374, 793635, 825035, 990042, 1062561, 1375634, 1587270, 1650070, 1770935, 2063451, 2125122, 2145091, 2475105, 3439085, 3541870, 4126902, 4290182, 4604431, 4950210, 5312805, 6435273, 6878170, 9208862, 10317255, 10625610, 10725455, 12870546, 13813293, 20634510, 21450910, 23022155, 27626586, 32176365, 46044310, 55607359, 64352730, 69066465, 111214718, 138132930, 166822077, 278036795, 333644154, 556073590, 722895667, 834110385, 1445791334, 1668220770, 2168687001, 3614478335, 4337374002, 7228956670, 10843435005, 21686870010]

約数ペア:

[(1, 21686870010), (2, 10843435005), (3, 7228956670), (5, 4337374002), (6, 3614478335), (10, 2168687001), (13, 1668220770), (15, 1445791334), (26, 834110385), (30, 722895667), (39, 556073590), (65, 333644154), (78, 278036795), (130, 166822077), (157, 138132930), (195, 111214718), (314, 69066465), (337, 64352730), (390, 55607359), (471, 46044310), (674, 32176365), (785, 27626586), (942, 23022155), (1011, 21450910), (1051, 20634510), (1570, 13813293), (1685, 12870546), (2022, 10725455), (2041, 10625610), (2102, 10317255), (2355, 9208862), (3153, 6878170), (3370, 6435273), (4082, 5312805), (4381, 4950210), (4710, 4604431), (5055, 4290182), (5255, 4126902), (6123, 3541870), (6306, 3439085), (8762, 2475105), (10110, 2145091), (10205, 2125122), (10510, 2063451), (12246, 1770935), (13143, 1650070), (13663, 1587270), (15765, 1375634), (20410, 1062561), (21905, 990042), (26286, 825035), (27326, 793635), (30615, 708374), (31530, 687817), (40989, 529090), (43810, 495021), (52909, 409890), (61230, 354187), (65715, 330014), (68315, 317454), (81978, 264545), (105818, 204945), (131430, 165007), (136630, 158727)]