28207905

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{170957}}^1$

素因数の和:170976

約数の個数: 16

約数和(自身を含む): 49235904

約数和(自身を除く): 21027999

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 170957, 512871, 854785, 1880527, 2564355, 5641581, 9402635, 28207905]

約数ペア:

[(1, 28207905), (3, 9402635), (5, 5641581), (11, 2564355), (15, 1880527), (33, 854785), (55, 512871), (165, 170957)]