20857479

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1\times {\mathrm{1123}}^1$

素因数の和:1318

約数の個数: 16

約数和(自身を含む): 28702464

約数和(自身を除く): 7844985

約数列:

[1, 3, 41, 123, 151, 453, 1123, 3369, 6191, 18573, 46043, 138129, 169573, 508719, 6952493, 20857479]

約数ペア:

[(1, 20857479), (3, 6952493), (41, 508719), (123, 169573), (151, 138129), (453, 46043), (1123, 18573), (3369, 6191)]