12855003

素因数分解:

$3^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{557}}^1$

素因数の和:731

約数の個数: 24

約数和(自身を含む): 20101392

約数和(自身を除く): 7246389

約数列:

[1, 3, 7, 21, 49, 147, 157, 471, 557, 1099, 1671, 3297, 3899, 7693, 11697, 23079, 27293, 81879, 87449, 262347, 612143, 1836429, 4285001, 12855003]

約数ペア:

[(1, 12855003), (3, 4285001), (7, 1836429), (21, 612143), (49, 262347), (147, 87449), (157, 81879), (471, 27293), (557, 23079), (1099, 11697), (1671, 7693), (3297, 3899)]