20407858

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{3259}}^1$

素因数の和:3393

約数の個数: 16

約数和(自身を含む): 31921920

約数和(自身を除く): 11514062

約数列:

[1, 2, 31, 62, 101, 202, 3131, 3259, 6262, 6518, 101029, 202058, 329159, 658318, 10203929, 20407858]

約数ペア:

[(1, 20407858), (2, 10203929), (31, 658318), (62, 329159), (101, 202058), (202, 101029), (3131, 6518), (3259, 6262)]