21580154

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{2657}}^1$

素因数の和:2821

約数の個数: 16

約数和(自身を含む): 33682176

約数和(自身を除く): 12102022

約数列:

[1, 2, 31, 62, 131, 262, 2657, 4061, 5314, 8122, 82367, 164734, 348067, 696134, 10790077, 21580154]

約数ペア:

[(1, 21580154), (2, 10790077), (31, 696134), (62, 348067), (131, 164734), (262, 82367), (2657, 8122), (4061, 5314)]