20491172

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{6679}}^1$

素因数の和:6755

約数の個数: 24

約数和(自身を含む): 39278400

約数和(自身を除く): 18787228

約数列:

[1, 2, 4, 13, 26, 52, 59, 118, 236, 767, 1534, 3068, 6679, 13358, 26716, 86827, 173654, 347308, 394061, 788122, 1576244, 5122793, 10245586, 20491172]

約数ペア:

[(1, 20491172), (2, 10245586), (4, 5122793), (13, 1576244), (26, 788122), (52, 394061), (59, 347308), (118, 173654), (236, 86827), (767, 26716), (1534, 13358), (3068, 6679)]