21271174

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1\times {\mathrm{919}}^1$

素因数の和:1155

約数の個数: 16

約数和(自身を含む): 32590080

約数和(自身を除く): 11318906

約数列:

[1, 2, 71, 142, 163, 326, 919, 1838, 11573, 23146, 65249, 130498, 149797, 299594, 10635587, 21271174]

約数ペア:

[(1, 21271174), (2, 10635587), (71, 299594), (142, 149797), (163, 130498), (326, 65249), (919, 23146), (1838, 11573)]