20371953

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{14479}}^1$

素因数の和:14556

約数の個数: 16

約数和(自身を含む): 31508480

約数和(自身を除く): 11136527

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 14479, 43437, 101353, 304059, 970093, 2910279, 6790651, 20371953]

約数ペア:

[(1, 20371953), (3, 6790651), (7, 2910279), (21, 970093), (67, 304059), (201, 101353), (469, 43437), (1407, 14479)]