20890243

素因数分解:

${\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{191}}^1$

素因数の和:426

約数の個数: 16

約数和(自身を含む): 23427072

約数和(自身を除く): 2536829

約数列:

[1, 11, 61, 163, 191, 671, 1793, 2101, 9943, 11651, 31133, 109373, 128161, 342463, 1899113, 20890243]

約数ペア:

[(1, 20890243), (11, 1899113), (61, 342463), (163, 128161), (191, 109373), (671, 31133), (1793, 11651), (2101, 9943)]