21033225

素因数分解:

$3^2\times 5^2\times {\mathrm{93481}}^1$

素因数の和:93497

約数の個数: 18

約数和(自身を含む): 37673246

約数和(自身を除く): 16640021

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 93481, 280443, 467405, 841329, 1402215, 2337025, 4206645, 7011075, 21033225]

約数ペア:

[(1, 21033225), (3, 7011075), (5, 4206645), (9, 2337025), (15, 1402215), (25, 841329), (45, 467405), (75, 280443), (225, 93481)]