20880159

素因数分解:

$3^1\times {\mathrm{23}}^2\times {\mathrm{59}}^1\times {\mathrm{223}}^1$

素因数の和:331

約数の個数: 24

約数和(自身を含む): 29729280

約数和(自身を除く): 8849121

約数列:

[1, 3, 23, 59, 69, 177, 223, 529, 669, 1357, 1587, 4071, 5129, 13157, 15387, 31211, 39471, 93633, 117967, 302611, 353901, 907833, 6960053, 20880159]

約数ペア:

[(1, 20880159), (3, 6960053), (23, 907833), (59, 353901), (69, 302611), (177, 117967), (223, 93633), (529, 39471), (669, 31211), (1357, 15387), (1587, 13157), (4071, 5129)]