21979011

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{2381}}^1$

素因数の和:2582

約数の個数: 16

約数和(自身を含む): 31213728

約数和(自身を除く): 9234717

約数列:

[1, 3, 17, 51, 181, 543, 2381, 3077, 7143, 9231, 40477, 121431, 430961, 1292883, 7326337, 21979011]

約数ペア:

[(1, 21979011), (3, 7326337), (17, 1292883), (51, 430961), (181, 121431), (543, 40477), (2381, 9231), (3077, 7143)]