13521305

素因数分解:

$5^1\times 7^2\times {\mathrm{229}}^1\times {\mathrm{241}}^1$

素因数の和:489

約数の個数: 24

約数和(自身を含む): 19035720

約数和(自身を除く): 5514415

約数列:

[1, 5, 7, 35, 49, 229, 241, 245, 1145, 1205, 1603, 1687, 8015, 8435, 11221, 11809, 55189, 56105, 59045, 275945, 386323, 1931615, 2704261, 13521305]

約数ペア:

[(1, 13521305), (5, 2704261), (7, 1931615), (35, 386323), (49, 275945), (229, 59045), (241, 56105), (245, 55189), (1145, 11809), (1205, 11221), (1603, 8435), (1687, 8015)]