21374210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{14947}}^1$

素因数の和:14978

約数の個数: 32

約数和(自身を含む): 45202752

約数和(自身を除く): 23828542

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 14947, 29894, 74735, 149470, 164417, 194311, 328834, 388622, 822085, 971555, 1644170, 1943110, 2137421, 4274842, 10687105, 21374210]

約数ペア:

[(1, 21374210), (2, 10687105), (5, 4274842), (10, 2137421), (11, 1943110), (13, 1644170), (22, 971555), (26, 822085), (55, 388622), (65, 328834), (110, 194311), (130, 164417), (143, 149470), (286, 74735), (715, 29894), (1430, 14947)]