639876818

素因数分解:

$2^1\times 7^1\times {\mathrm{4507}}^1\times {\mathrm{10141}}^1$

素因数の和:14657

約数の個数: 16

約数和(自身を含む): 1097283264

約数和(自身を除く): 457406446

約数列:

[1, 2, 7, 14, 4507, 9014, 10141, 20282, 31549, 63098, 70987, 141974, 45705487, 91410974, 319938409, 639876818]

約数ペア:

[(1, 639876818), (2, 319938409), (7, 91410974), (14, 45705487), (4507, 141974), (9014, 70987), (10141, 63098), (20282, 31549)]