21815365

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{2347}}^1$

素因数の和:2389

約数の個数: 24

約数和(自身を含む): 30937248

約数和(自身を除く): 9121883

約数列:

[1, 5, 11, 13, 55, 65, 143, 169, 715, 845, 1859, 2347, 9295, 11735, 25817, 30511, 129085, 152555, 335621, 396643, 1678105, 1983215, 4363073, 21815365]

約数ペア:

[(1, 21815365), (5, 4363073), (11, 1983215), (13, 1678105), (55, 396643), (65, 335621), (143, 152555), (169, 129085), (715, 30511), (845, 25817), (1859, 11735), (2347, 9295)]