21721662

素因数分解:

$2^1\times 3^3\times {\mathrm{402253}}^1$

素因数の和:402264

約数の個数: 16

約数和(自身を含む): 48270480

約数和(自身を除く): 26548818

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 402253, 804506, 1206759, 2413518, 3620277, 7240554, 10860831, 21721662]

約数ペア:

[(1, 21721662), (2, 10860831), (3, 7240554), (6, 3620277), (9, 2413518), (18, 1206759), (27, 804506), (54, 402253)]