20902902

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{81019}}^1$

素因数の和:81067

約数の個数: 16

約数和(自身を含む): 42778560

約数和(自身を除く): 21875658

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 81019, 162038, 243057, 486114, 3483817, 6967634, 10451451, 20902902]

約数ペア:

[(1, 20902902), (2, 10451451), (3, 6967634), (6, 3483817), (43, 486114), (86, 243057), (129, 162038), (258, 81019)]