205134615

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{651221}}^1$

素因数の和:651239

約数の個数: 24

約数和(自身を含む): 406362528

約数和(自身を除く): 201227913

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 651221, 1953663, 3256105, 4558547, 5860989, 9768315, 13675641, 22792735, 29304945, 41026923, 68378205, 205134615]

約数ペア:

[(1, 205134615), (3, 68378205), (5, 41026923), (7, 29304945), (9, 22792735), (15, 13675641), (21, 9768315), (35, 5860989), (45, 4558547), (63, 3256105), (105, 1953663), (315, 651221)]