20391022

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{1789}}^1$

素因数の和:1971

約数の個数: 16

約数和(自身を含む): 31575600

約数和(自身を除く): 11184578

約数列:

[1, 2, 41, 82, 139, 278, 1789, 3578, 5699, 11398, 73349, 146698, 248671, 497342, 10195511, 20391022]

約数ペア:

[(1, 20391022), (2, 10195511), (41, 497342), (82, 248671), (139, 146698), (278, 73349), (1789, 11398), (3578, 5699)]