19581993

素因数分解:

$3^4\times {\mathrm{23}}^2\times {\mathrm{457}}^1$

素因数の和:515

約数の個数: 30

約数和(自身を含む): 30646154

約数和(自身を除く): 11064161

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 457, 529, 621, 1371, 1587, 1863, 4113, 4761, 10511, 12339, 14283, 31533, 37017, 42849, 94599, 241753, 283797, 725259, 851391, 2175777, 6527331, 19581993]

約数ペア:

[(1, 19581993), (3, 6527331), (9, 2175777), (23, 851391), (27, 725259), (69, 283797), (81, 241753), (207, 94599), (457, 42849), (529, 37017), (621, 31533), (1371, 14283), (1587, 12339), (1863, 10511), (4113, 4761)]