21082725

素因数分解:

$3^2\times 5^2\times {\mathrm{93701}}^1$

素因数の和:93717

約数の個数: 18

約数和(自身を含む): 37761906

約数和(自身を除く): 16679181

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 93701, 281103, 468505, 843309, 1405515, 2342525, 4216545, 7027575, 21082725]

約数ペア:

[(1, 21082725), (3, 7027575), (5, 4216545), (9, 2342525), (15, 1405515), (25, 843309), (45, 468505), (75, 281103), (225, 93701)]