20216216

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{81517}}^1$

素因数の和:81554

約数の個数: 16

約数和(自身を含む): 39128640

約数和(自身を除く): 18912424

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 81517, 163034, 326068, 652136, 2527027, 5054054, 10108108, 20216216]

約数ペア:

[(1, 20216216), (2, 10108108), (4, 5054054), (8, 2527027), (31, 652136), (62, 326068), (124, 163034), (248, 81517)]