31404386

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{19801}}^1$

素因数の和:19877

約数の個数: 16

約数和(自身を含む): 51564408

約数和(自身を除く): 20160022

約数列:

[1, 2, 13, 26, 61, 122, 793, 1586, 19801, 39602, 257413, 514826, 1207861, 2415722, 15702193, 31404386]

約数ペア:

[(1, 31404386), (2, 15702193), (13, 2415722), (26, 1207861), (61, 514826), (122, 257413), (793, 39602), (1586, 19801)]