28205145

素因数分解:

$3^3\times 5^1\times {\mathrm{208927}}^1$

素因数の和:208941

約数の個数: 16

約数和(自身を含む): 50142720

約数和(自身を除く): 21937575

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 208927, 626781, 1044635, 1880343, 3133905, 5641029, 9401715, 28205145]

約数ペア:

[(1, 28205145), (3, 9401715), (5, 5641029), (9, 3133905), (15, 1880343), (27, 1044635), (45, 626781), (135, 208927)]