639230851

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{65839}}^1$

素因数の和:65938

約数の個数: 16

約数和(自身を含む): 779545600

約数和(自身を除く): 140314749

約数列:

[1, 7, 19, 73, 133, 511, 1387, 9709, 65839, 460873, 1250941, 4806247, 8756587, 33643729, 91318693, 639230851]

約数ペア:

[(1, 639230851), (7, 91318693), (19, 33643729), (73, 8756587), (133, 4806247), (511, 1250941), (1387, 460873), (9709, 65839)]