20995108

素因数分解:

$2^2\times {\mathrm{103}}^1\times {\mathrm{131}}^1\times {\mathrm{389}}^1$

素因数の和:627

約数の個数: 24

約数和(自身を含む): 37477440

約数和(自身を除く): 16482332

約数列:

[1, 2, 4, 103, 131, 206, 262, 389, 412, 524, 778, 1556, 13493, 26986, 40067, 50959, 53972, 80134, 101918, 160268, 203836, 5248777, 10497554, 20995108]

約数ペア:

[(1, 20995108), (2, 10497554), (4, 5248777), (103, 203836), (131, 160268), (206, 101918), (262, 80134), (389, 53972), (412, 50959), (524, 40067), (778, 26986), (1556, 13493)]