21179241

素因数分解:

$3^2\times {\mathrm{89}}^1\times {\mathrm{137}}^1\times {\mathrm{193}}^1$

素因数の和:425

約数の個数: 24

約数和(自身を含む): 31323240

約数和(自身を除く): 10143999

約数列:

[1, 3, 9, 89, 137, 193, 267, 411, 579, 801, 1233, 1737, 12193, 17177, 26441, 36579, 51531, 79323, 109737, 154593, 237969, 2353249, 7059747, 21179241]

約数ペア:

[(1, 21179241), (3, 7059747), (9, 2353249), (89, 237969), (137, 154593), (193, 109737), (267, 79323), (411, 51531), (579, 36579), (801, 26441), (1233, 17177), (1737, 12193)]