21404548

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{4463}}^1$

素因数の和:4587

約数の個数: 24

約数和(自身を含む): 41247360

約数和(自身を除く): 19842812

約数列:

[1, 2, 4, 11, 22, 44, 109, 218, 436, 1199, 2398, 4463, 4796, 8926, 17852, 49093, 98186, 196372, 486467, 972934, 1945868, 5351137, 10702274, 21404548]

約数ペア:

[(1, 21404548), (2, 10702274), (4, 5351137), (11, 1945868), (22, 972934), (44, 486467), (109, 196372), (218, 98186), (436, 49093), (1199, 17852), (2398, 8926), (4463, 4796)]