15130521

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{6491}}^1$

素因数の和:6541

約数の個数: 24

約数和(自身を含む): 25656384

約数和(自身を除く): 10525863

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 777, 2331, 6491, 19473, 45437, 58419, 136311, 240167, 408933, 720501, 1681169, 2161503, 5043507, 15130521]

約数ペア:

[(1, 15130521), (3, 5043507), (7, 2161503), (9, 1681169), (21, 720501), (37, 408933), (63, 240167), (111, 136311), (259, 58419), (333, 45437), (777, 19473), (2331, 6491)]