20973836

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{2707}}^1$

素因数の和:2873

約数の個数: 24

約数和(自身を含む): 39807600

約数和(自身を除く): 18833764

約数列:

[1, 2, 4, 13, 26, 52, 149, 298, 596, 1937, 2707, 3874, 5414, 7748, 10828, 35191, 70382, 140764, 403343, 806686, 1613372, 5243459, 10486918, 20973836]

約数ペア:

[(1, 20973836), (2, 10486918), (4, 5243459), (13, 1613372), (26, 806686), (52, 403343), (149, 140764), (298, 70382), (596, 35191), (1937, 10828), (2707, 7748), (3874, 5414)]