20161213918

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{27924119}}^1$

素因数の和:27924159

約数の個数: 12

約数和(自身を含む): 31917269160

約数和(自身を除く): 11756055242

約数列:

[1, 2, 19, 38, 361, 722, 27924119, 55848238, 530558261, 1061116522, 10080606959, 20161213918]

約数ペア:

[(1, 20161213918), (2, 10080606959), (19, 1061116522), (38, 530558261), (361, 55848238), (722, 27924119)]