20404479

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{1453}}^1$

素因数の和:1638

約数の個数: 16

約数和(自身を含む): 28289024

約数和(自身を除く): 7884545

約数列:

[1, 3, 31, 93, 151, 453, 1453, 4359, 4681, 14043, 45043, 135129, 219403, 658209, 6801493, 20404479]

約数ペア:

[(1, 20404479), (3, 6801493), (31, 658209), (93, 219403), (151, 135129), (453, 45043), (1453, 14043), (4359, 4681)]