28381199

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{1871}}^1$

素因数の和:2086

約数の個数: 16

約数和(自身を含む): 35582976

約数和(自身を除く): 7201777

約数列:

[1, 7, 11, 77, 197, 1379, 1871, 2167, 13097, 15169, 20581, 144067, 368587, 2580109, 4054457, 28381199]

約数ペア:

[(1, 28381199), (7, 4054457), (11, 2580109), (77, 368587), (197, 144067), (1379, 20581), (1871, 15169), (2167, 13097)]