21534370

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{37}}^2$

素因数の和:116

約数の個数: 72

約数和(自身を含む): 47157012

約数和(自身を除く): 25622642

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 37, 55, 65, 74, 110, 121, 130, 143, 185, 242, 286, 370, 407, 481, 605, 715, 814, 962, 1210, 1369, 1430, 1573, 2035, 2405, 2738, 3146, 4070, 4477, 4810, 5291, 6845, 7865, 8954, 10582, 13690, 15059, 15730, 17797, 22385, 26455, 30118, 35594, 44770, 52910, 58201, 75295, 88985, 116402, 150590, 165649, 177970, 195767, 291005, 331298, 391534, 582010, 828245, 978835, 1656490, 1957670, 2153437, 4306874, 10767185, 21534370]

約数ペア:

[(1, 21534370), (2, 10767185), (5, 4306874), (10, 2153437), (11, 1957670), (13, 1656490), (22, 978835), (26, 828245), (37, 582010), (55, 391534), (65, 331298), (74, 291005), (110, 195767), (121, 177970), (130, 165649), (143, 150590), (185, 116402), (242, 88985), (286, 75295), (370, 58201), (407, 52910), (481, 44770), (605, 35594), (715, 30118), (814, 26455), (962, 22385), (1210, 17797), (1369, 15730), (1430, 15059), (1573, 13690), (2035, 10582), (2405, 8954), (2738, 7865), (3146, 6845), (4070, 5291), (4477, 4810)]