21050125

素因数分解:

$5^3\times {\mathrm{47}}^1\times {\mathrm{3583}}^1$

素因数の和:3645

約数の個数: 16

約数和(自身を含む): 26836992

約数和(自身を除く): 5786867

約数列:

[1, 5, 25, 47, 125, 235, 1175, 3583, 5875, 17915, 89575, 168401, 447875, 842005, 4210025, 21050125]

約数ペア:

[(1, 21050125), (5, 4210025), (25, 842005), (47, 447875), (125, 168401), (235, 89575), (1175, 17915), (3583, 5875)]