420179967

素因数分解:

$3^4\times {\mathrm{457}}^1\times {\mathrm{11351}}^1$

素因数の和:11820

約数の個数: 20

約数和(自身を含む): 629105136

約数和(自身を除く): 208925169

約数列:

[1, 3, 9, 27, 81, 457, 1371, 4113, 11351, 12339, 34053, 37017, 102159, 306477, 919431, 5187407, 15562221, 46686663, 140059989, 420179967]

約数ペア:

[(1, 420179967), (3, 140059989), (9, 46686663), (27, 15562221), (81, 5187407), (457, 919431), (1371, 306477), (4113, 102159), (11351, 37017), (12339, 34053)]