21575031

素因数分解:

$3^1\times {\mathrm{97}}^1\times {\mathrm{151}}^1\times {\mathrm{491}}^1$

素因数の和:742

約数の個数: 16

約数和(自身を含む): 29315328

約数和(自身を除く): 7740297

約数列:

[1, 3, 97, 151, 291, 453, 491, 1473, 14647, 43941, 47627, 74141, 142881, 222423, 7191677, 21575031]

約数ペア:

[(1, 21575031), (3, 7191677), (97, 222423), (151, 142881), (291, 74141), (453, 47627), (491, 43941), (1473, 14647)]