21417110

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{881}}^1$

素因数の和:929

約数の個数: 64

約数和(自身を含む): 48009024

約数和(自身を除く): 26591914

約数列:

[1, 2, 5, 10, 11, 13, 17, 22, 26, 34, 55, 65, 85, 110, 130, 143, 170, 187, 221, 286, 374, 442, 715, 881, 935, 1105, 1430, 1762, 1870, 2210, 2431, 4405, 4862, 8810, 9691, 11453, 12155, 14977, 19382, 22906, 24310, 29954, 48455, 57265, 74885, 96910, 114530, 125983, 149770, 164747, 194701, 251966, 329494, 389402, 629915, 823735, 973505, 1259830, 1647470, 1947010, 2141711, 4283422, 10708555, 21417110]

約数ペア:

[(1, 21417110), (2, 10708555), (5, 4283422), (10, 2141711), (11, 1947010), (13, 1647470), (17, 1259830), (22, 973505), (26, 823735), (34, 629915), (55, 389402), (65, 329494), (85, 251966), (110, 194701), (130, 164747), (143, 149770), (170, 125983), (187, 114530), (221, 96910), (286, 74885), (374, 57265), (442, 48455), (715, 29954), (881, 24310), (935, 22906), (1105, 19382), (1430, 14977), (1762, 12155), (1870, 11453), (2210, 9691), (2431, 8810), (4405, 4862)]