19620531

素因数分解:

$3^2\times 7^2\times {\mathrm{44491}}^1$

素因数の和:44511

約数の個数: 18

約数和(自身を含む): 32968572

約数和(自身を除く): 13348041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 44491, 133473, 311437, 400419, 934311, 2180059, 2802933, 6540177, 19620531]

約数ペア:

[(1, 19620531), (3, 6540177), (7, 2802933), (9, 2180059), (21, 934311), (49, 400419), (63, 311437), (147, 133473), (441, 44491)]