21240186

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{321821}}^1$

素因数の和:321837

約数の個数: 16

約数和(自身を含む): 46342368

約数和(自身を除く): 25102182

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 321821, 643642, 965463, 1930926, 3540031, 7080062, 10620093, 21240186]

約数ペア:

[(1, 21240186), (2, 10620093), (3, 7080062), (6, 3540031), (11, 1930926), (22, 965463), (33, 643642), (66, 321821)]