20813451

素因数分解:

$3^1\times {\mathrm{89}}^1\times {\mathrm{137}}^1\times {\mathrm{569}}^1$

素因数の和:798

約数の個数: 16

約数和(自身を含む): 28317600

約数和(自身を除く): 7504149

約数列:

[1, 3, 89, 137, 267, 411, 569, 1707, 12193, 36579, 50641, 77953, 151923, 233859, 6937817, 20813451]

約数ペア:

[(1, 20813451), (3, 6937817), (89, 233859), (137, 151923), (267, 77953), (411, 50641), (569, 36579), (1707, 12193)]