13481615

素因数分解:

$5^1\times 7^4\times {\mathrm{1123}}^1$

素因数の和:1156

約数の個数: 20

約数和(自身を含む): 18889944

約数和(自身を除く): 5408329

約数列:

[1, 5, 7, 35, 49, 245, 343, 1123, 1715, 2401, 5615, 7861, 12005, 39305, 55027, 275135, 385189, 1925945, 2696323, 13481615]

約数ペア:

[(1, 13481615), (5, 2696323), (7, 1925945), (35, 385189), (49, 275135), (245, 55027), (343, 39305), (1123, 12005), (1715, 7861), (2401, 5615)]