20443676

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42239}}^1$

素因数の和:42265

約数の個数: 18

約数和(自身を含む): 39325440

約数和(自身を除く): 18881764

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42239, 84478, 168956, 464629, 929258, 1858516, 5110919, 10221838, 20443676]

約数ペア:

[(1, 20443676), (2, 10221838), (4, 5110919), (11, 1858516), (22, 929258), (44, 464629), (121, 168956), (242, 84478), (484, 42239)]