20490404

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{2857}}^1$

素因数の和:3035

約数の個数: 24

約数和(自身を含む): 39371808

約数和(自身を除く): 18881404

約数列:

[1, 2, 4, 11, 22, 44, 163, 326, 652, 1793, 2857, 3586, 5714, 7172, 11428, 31427, 62854, 125708, 465691, 931382, 1862764, 5122601, 10245202, 20490404]

約数ペア:

[(1, 20490404), (2, 10245202), (4, 5122601), (11, 1862764), (22, 931382), (44, 465691), (163, 125708), (326, 62854), (652, 31427), (1793, 11428), (2857, 7172), (3586, 5714)]