19721451

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1\times {\mathrm{719}}^1$

素因数の和:986

約数の個数: 16

約数和(自身を含む): 27095040

約数和(自身を除く): 7373589

約数列:

[1, 3, 41, 123, 223, 669, 719, 2157, 9143, 27429, 29479, 88437, 160337, 481011, 6573817, 19721451]

約数ペア:

[(1, 19721451), (3, 6573817), (41, 481011), (123, 160337), (223, 88437), (669, 29479), (719, 27429), (2157, 9143)]