21120726

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{320011}}^1$

素因数の和:320027

約数の個数: 16

約数和(自身を含む): 46081728

約数和(自身を除く): 24961002

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 320011, 640022, 960033, 1920066, 3520121, 7040242, 10560363, 21120726]

約数ペア:

[(1, 21120726), (2, 10560363), (3, 7040242), (6, 3520121), (11, 1920066), (22, 960033), (33, 640022), (66, 320011)]