39916964

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{321911}}^1$

素因数の和:321946

約数の個数: 12

約数和(自身を含む): 72108288

約数和(自身を除く): 32191324

約数列:

[1, 2, 4, 31, 62, 124, 321911, 643822, 1287644, 9979241, 19958482, 39916964]

約数ペア:

[(1, 39916964), (2, 19958482), (4, 9979241), (31, 1287644), (62, 643822), (124, 321911)]