12856865

素因数分解:

$5^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{541}}^1$

素因数の和:657

約数の個数: 24

約数和(自身を含む): 18165672

約数和(自身を除く): 5308807

約数列:

[1, 5, 7, 35, 49, 97, 245, 485, 541, 679, 2705, 3395, 3787, 4753, 18935, 23765, 26509, 52477, 132545, 262385, 367339, 1836695, 2571373, 12856865]

約数ペア:

[(1, 12856865), (5, 2571373), (7, 1836695), (35, 367339), (49, 262385), (97, 132545), (245, 52477), (485, 26509), (541, 23765), (679, 18935), (2705, 4753), (3395, 3787)]