21126620

素因数分解:

$2^2\times 5^1\times {\mathrm{727}}^1\times {\mathrm{1453}}^1$

素因数の和:2189

約数の個数: 24

約数和(自身を含む): 44457504

約数和(自身を除く): 23330884

約数列:

[1, 2, 4, 5, 10, 20, 727, 1453, 1454, 2906, 2908, 3635, 5812, 7265, 7270, 14530, 14540, 29060, 1056331, 2112662, 4225324, 5281655, 10563310, 21126620]

約数ペア:

[(1, 21126620), (2, 10563310), (4, 5281655), (5, 4225324), (10, 2112662), (20, 1056331), (727, 29060), (1453, 14540), (1454, 14530), (2906, 7270), (2908, 7265), (3635, 5812)]