21408418

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{331}}^1\times {\mathrm{443}}^1$

素因数の和:849

約数の個数: 16

約数和(自身を含む): 32724576

約数和(自身を除く): 11316158

約数列:

[1, 2, 73, 146, 331, 443, 662, 886, 24163, 32339, 48326, 64678, 146633, 293266, 10704209, 21408418]

約数ペア:

[(1, 21408418), (2, 10704209), (73, 293266), (146, 146633), (331, 64678), (443, 48326), (662, 32339), (886, 24163)]