19715410

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{811}}^1$

素因数の和:859

約数の個数: 64

約数和(自身を含む): 44198784

約数和(自身を除く): 24483374

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, 811, 935, 1105, 1430, 1622, 1870, 2210, 2431, 4055, 4862, 8110, 8921, 10543, 12155, 13787, 17842, 21086, 24310, 27574, 44605, 52715, 68935, 89210, 105430, 115973, 137870, 151657, 179231, 231946, 303314, 358462, 579865, 758285, 896155, 1159730, 1516570, 1792310, 1971541, 3943082, 9857705, 19715410]

約数ペア:

[(1, 19715410), (2, 9857705), (5, 3943082), (10, 1971541), (11, 1792310), (13, 1516570), (17, 1159730), (22, 896155), (26, 758285), (34, 579865), (55, 358462), (65, 303314), (85, 231946), (110, 179231), (130, 151657), (143, 137870), (170, 115973), (187, 105430), (221, 89210), (286, 68935), (374, 52715), (442, 44605), (715, 27574), (811, 24310), (935, 21086), (1105, 17842), (1430, 13787), (1622, 12155), (1870, 10543), (2210, 8921), (2431, 8110), (4055, 4862)]