2187921

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{857}}^1$

素因数の和:920

約数の個数: 16

約数和(自身を含む): 3129984

約数和(自身を除く): 942063

約数列:

[1, 3, 23, 37, 69, 111, 851, 857, 2553, 2571, 19711, 31709, 59133, 95127, 729307, 2187921]

約数ペア:

[(1, 2187921), (3, 729307), (23, 95127), (37, 59133), (69, 31709), (111, 19711), (851, 2571), (857, 2553)]