18862221

素因数分解:

$3^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{2309}}^1$

素因数の和:2708

約数の個数: 16

約数和(自身を含む): 28828800

約数和(自身を除く): 9966579

約数列:

[1, 3, 7, 21, 389, 1167, 2309, 2723, 6927, 8169, 16163, 48489, 898201, 2694603, 6287407, 18862221]

約数ペア:

[(1, 18862221), (3, 6287407), (7, 2694603), (21, 898201), (389, 48489), (1167, 16163), (2309, 8169), (2723, 6927)]