21286800005

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{11793241}}^1$

素因数の和:11793284

約数の個数: 12

約数和(自身を含む): 26959351212

約数和(自身を除く): 5672551207

約数列:

[1, 5, 19, 95, 361, 1805, 11793241, 58966205, 224071579, 1120357895, 4257360001, 21286800005]

約数ペア:

[(1, 21286800005), (5, 4257360001), (19, 1120357895), (95, 224071579), (361, 58966205), (1805, 11793241)]