20581692

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{39887}}^1$

素因数の和:39937

約数の個数: 24

約数和(自身を含む): 49142016

約数和(自身を除く): 28560324

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 39887, 79774, 119661, 159548, 239322, 478644, 1715141, 3430282, 5145423, 6860564, 10290846, 20581692]

約数ペア:

[(1, 20581692), (2, 10290846), (3, 6860564), (4, 5145423), (6, 3430282), (12, 1715141), (43, 478644), (86, 239322), (129, 159548), (172, 119661), (258, 79774), (516, 39887)]