20725238

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{8941}}^1$

素因数の和:9023

約数の個数: 16

約数和(自身を含む): 33264240

約数和(自身を除く): 12539002

約数列:

[1, 2, 19, 38, 61, 122, 1159, 2318, 8941, 17882, 169879, 339758, 545401, 1090802, 10362619, 20725238]

約数ペア:

[(1, 20725238), (2, 10362619), (19, 1090802), (38, 545401), (61, 339758), (122, 169879), (1159, 17882), (2318, 8941)]