21621237

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{4339}}^1$

素因数の和:4504

約数の個数: 16

約数和(自身を含む): 31664640

約数和(自身を除く): 10043403

約数列:

[1, 3, 11, 33, 151, 453, 1661, 4339, 4983, 13017, 47729, 143187, 655189, 1965567, 7207079, 21621237]

約数ペア:

[(1, 21621237), (3, 7207079), (11, 1965567), (33, 655189), (151, 143187), (453, 47729), (1661, 13017), (4339, 4983)]