12886265

素因数分解:

$5^1\times 7^2\times {\mathrm{149}}^1\times {\mathrm{353}}^1$

素因数の和:521

約数の個数: 24

約数和(自身を含む): 18160200

約数和(自身を除く): 5273935

約数列:

[1, 5, 7, 35, 49, 149, 245, 353, 745, 1043, 1765, 2471, 5215, 7301, 12355, 17297, 36505, 52597, 86485, 262985, 368179, 1840895, 2577253, 12886265]

約数ペア:

[(1, 12886265), (5, 2577253), (7, 1840895), (35, 368179), (49, 262985), (149, 86485), (245, 52597), (353, 36505), (745, 17297), (1043, 12355), (1765, 7301), (2471, 5215)]