21787444826

素因数分解:

$2^1\times 7^1\times {\mathrm{739}}^1\times {\mathrm{2105881}}^1$

素因数の和:2106629

約数の個数: 16

約数和(自身を含む): 37400464320

約数和(自身を除く): 15613019494

約数列:

[1, 2, 7, 14, 739, 1478, 5173, 10346, 2105881, 4211762, 14741167, 29482334, 1556246059, 3112492118, 10893722413, 21787444826]

約数ペア:

[(1, 21787444826), (2, 10893722413), (7, 3112492118), (14, 1556246059), (739, 29482334), (1478, 14741167), (5173, 4211762), (10346, 2105881)]