21551907

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{2293}}^1$

素因数の和:2550

約数の個数: 16

約数和(自身を含む): 31088288

約数和(自身を除く): 9536381

約数列:

[1, 3, 13, 39, 241, 723, 2293, 3133, 6879, 9399, 29809, 89427, 552613, 1657839, 7183969, 21551907]

約数ペア:

[(1, 21551907), (3, 7183969), (13, 1657839), (39, 552613), (241, 89427), (723, 29809), (2293, 9399), (3133, 6879)]