21324525

素因数分解:

$3^1\times 5^2\times {\mathrm{157}}^1\times {\mathrm{1811}}^1$

素因数の和:1981

約数の個数: 24

約数和(自身を含む): 35500704

約数和(自身を除く): 14176179

約数列:

[1, 3, 5, 15, 25, 75, 157, 471, 785, 1811, 2355, 3925, 5433, 9055, 11775, 27165, 45275, 135825, 284327, 852981, 1421635, 4264905, 7108175, 21324525]

約数ペア:

[(1, 21324525), (3, 7108175), (5, 4264905), (15, 1421635), (25, 852981), (75, 284327), (157, 135825), (471, 45275), (785, 27165), (1811, 11775), (2355, 9055), (3925, 5433)]