15721804251

素因数分解:

$3^2\times {\mathrm{4391}}^1\times {\mathrm{397829}}^1$

素因数の和:402226

約数の個数: 12

約数和(自身を含む): 22714501680

約数和(自身を除く): 6992697429

約数列:

[1, 3, 9, 4391, 13173, 39519, 397829, 1193487, 3580461, 1746867139, 5240601417, 15721804251]

約数ペア:

[(1, 15721804251), (3, 5240601417), (9, 1746867139), (4391, 3580461), (13173, 1193487), (39519, 397829)]