18404757

素因数分解:

$3^2\times 7^1\times {\mathrm{389}}^1\times {\mathrm{751}}^1$

素因数の和:1153

約数の個数: 24

約数和(自身を含む): 30501120

約数和(自身を除く): 12096363

約数列:

[1, 3, 7, 9, 21, 63, 389, 751, 1167, 2253, 2723, 3501, 5257, 6759, 8169, 15771, 24507, 47313, 292139, 876417, 2044973, 2629251, 6134919, 18404757]

約数ペア:

[(1, 18404757), (3, 6134919), (7, 2629251), (9, 2044973), (21, 876417), (63, 292139), (389, 47313), (751, 24507), (1167, 15771), (2253, 8169), (2723, 6759), (3501, 5257)]