21085987010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2707}}^1\times {\mathrm{3727}}^1$

素因数の和:6471

約数の個数: 64

約数和(自身を含む): 43612231680

約数和(自身を除く): 22526244670

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 2707, 3727, 5414, 7454, 13535, 18635, 27070, 29777, 37270, 40997, 51433, 59554, 70813, 81994, 102866, 141626, 148885, 204985, 257165, 297770, 354065, 409970, 514330, 565763, 708130, 778943, 1131526, 1557886, 2828815, 3894715, 5657630, 7789430, 10088989, 20177978, 50444945, 100889890, 110978879, 191690791, 221957758, 383381582, 554894395, 958453955, 1109788790, 1916907910, 2108598701, 4217197402, 10542993505, 21085987010]

約数ペア:

[(1, 21085987010), (2, 10542993505), (5, 4217197402), (10, 2108598701), (11, 1916907910), (19, 1109788790), (22, 958453955), (38, 554894395), (55, 383381582), (95, 221957758), (110, 191690791), (190, 110978879), (209, 100889890), (418, 50444945), (1045, 20177978), (2090, 10088989), (2707, 7789430), (3727, 5657630), (5414, 3894715), (7454, 2828815), (13535, 1557886), (18635, 1131526), (27070, 778943), (29777, 708130), (37270, 565763), (40997, 514330), (51433, 409970), (59554, 354065), (70813, 297770), (81994, 257165), (102866, 204985), (141626, 148885)]