24705

素因数分解:

$3^4\times 5^1\times {\mathrm{61}}^1$

素因数の和:78

約数の個数: 20

約数和(自身を含む): 45012

約数和(自身を除く): 20307

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 81, 135, 183, 305, 405, 549, 915, 1647, 2745, 4941, 8235, 24705]

約数ペア:

[(1, 24705), (3, 8235), (5, 4941), (9, 2745), (15, 1647), (27, 915), (45, 549), (61, 405), (81, 305), (135, 183)]