851391

素因数分解:

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

素因数の和:492

約数の個数: 20

約数和(自身を含む): 1330032

約数和(自身を除く): 478641

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 457, 621, 1371, 1863, 4113, 10511, 12339, 31533, 37017, 94599, 283797, 851391]

約数ペア:

[(1, 851391), (3, 283797), (9, 94599), (23, 37017), (27, 31533), (69, 12339), (81, 10511), (207, 4113), (457, 1863), (621, 1371)]