21942087

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{2377}}^1$

素因数の和:2578

約数の個数: 16

約数和(自身を含む): 31161312

約数和(自身を除く): 9219225

約数列:

[1, 3, 17, 51, 181, 543, 2377, 3077, 7131, 9231, 40409, 121227, 430237, 1290711, 7314029, 21942087]

約数ペア:

[(1, 21942087), (3, 7314029), (17, 1290711), (51, 430237), (181, 121227), (543, 40409), (2377, 9231), (3077, 7131)]