18221515

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1423}}^1$

素因数の和:1638

約数の個数: 16

約数和(自身を含む): 23683968

約数和(自身を除く): 5462453

約数列:

[1, 5, 13, 65, 197, 985, 1423, 2561, 7115, 12805, 18499, 92495, 280331, 1401655, 3644303, 18221515]

約数ペア:

[(1, 18221515), (5, 3644303), (13, 1401655), (65, 280331), (197, 92495), (985, 18499), (1423, 12805), (2561, 7115)]