21301250

素因数分解:

$2^1\times 5^4\times {\mathrm{17041}}^1$

素因数の和:17063

約数の個数: 20

約数和(自身を含む): 39929406

約数和(自身を除く): 18628156

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 625, 1250, 17041, 34082, 85205, 170410, 426025, 852050, 2130125, 4260250, 10650625, 21301250]

約数ペア:

[(1, 21301250), (2, 10650625), (5, 4260250), (10, 2130125), (25, 852050), (50, 426025), (125, 170410), (250, 85205), (625, 34082), (1250, 17041)]