21309525

素因数分解:

$3^2\times 5^2\times {\mathrm{94709}}^1$

素因数の和:94725

約数の個数: 18

約数和(自身を含む): 38168130

約数和(自身を除く): 16858605

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 94709, 284127, 473545, 852381, 1420635, 2367725, 4261905, 7103175, 21309525]

約数ペア:

[(1, 21309525), (3, 7103175), (5, 4261905), (9, 2367725), (15, 1420635), (25, 852381), (45, 473545), (75, 284127), (225, 94709)]