20393908

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{1009}}^1$

素因数の和:1207

約数の個数: 24

約数和(自身を含む): 37103360

約数和(自身を除く): 16709452

約数列:

[1, 2, 4, 31, 62, 124, 163, 326, 652, 1009, 2018, 4036, 5053, 10106, 20212, 31279, 62558, 125116, 164467, 328934, 657868, 5098477, 10196954, 20393908]

約数ペア:

[(1, 20393908), (2, 10196954), (4, 5098477), (31, 657868), (62, 328934), (124, 164467), (163, 125116), (326, 62558), (652, 31279), (1009, 20212), (2018, 10106), (4036, 5053)]