639063929

素因数分解:

$7^2\times {\mathrm{113}}^1\times {\mathrm{211}}^1\times {\mathrm{547}}^1$

素因数の和:885

約数の個数: 24

約数和(自身を含む): 754911648

約数和(自身を除く): 115847719

約数列:

[1, 7, 49, 113, 211, 547, 791, 1477, 3829, 5537, 10339, 23843, 26803, 61811, 115417, 166901, 432677, 807919, 1168307, 3028739, 5655433, 13042121, 91294847, 639063929]

約数ペア:

[(1, 639063929), (7, 91294847), (49, 13042121), (113, 5655433), (211, 3028739), (547, 1168307), (791, 807919), (1477, 432677), (3829, 166901), (5537, 115417), (10339, 61811), (23843, 26803)]