15705405

素因数分解:

$3^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{829}}^1$

素因数の和:1261

約数の個数: 24

約数和(自身を含む): 27320280

約数和(自身を除く): 11614875

約数列:

[1, 3, 5, 9, 15, 45, 421, 829, 1263, 2105, 2487, 3789, 4145, 6315, 7461, 12435, 18945, 37305, 349009, 1047027, 1745045, 3141081, 5235135, 15705405]

約数ペア:

[(1, 15705405), (3, 5235135), (5, 3141081), (9, 1745045), (15, 1047027), (45, 349009), (421, 37305), (829, 18945), (1263, 12435), (2105, 7461), (2487, 6315), (3789, 4145)]