21262124

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{257}}^1$

素因数の和:354

約数の個数: 48

約数和(自身を含む): 42274848

約数和(自身を除く): 21012724

約数列:

[1, 2, 4, 13, 26, 37, 43, 52, 74, 86, 148, 172, 257, 481, 514, 559, 962, 1028, 1118, 1591, 1924, 2236, 3182, 3341, 6364, 6682, 9509, 11051, 13364, 19018, 20683, 22102, 38036, 41366, 44204, 82732, 123617, 143663, 247234, 287326, 408887, 494468, 574652, 817774, 1635548, 5315531, 10631062, 21262124]

約数ペア:

[(1, 21262124), (2, 10631062), (4, 5315531), (13, 1635548), (26, 817774), (37, 574652), (43, 494468), (52, 408887), (74, 287326), (86, 247234), (148, 143663), (172, 123617), (257, 82732), (481, 44204), (514, 41366), (559, 38036), (962, 22102), (1028, 20683), (1118, 19018), (1591, 13364), (1924, 11051), (2236, 9509), (3182, 6682), (3341, 6364)]