20867518

素因数分解:

$2^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{5381}}^1$

素因数の和:5667

約数の個数: 16

約数和(自身を含む): 35908704

約数和(自身を除く): 15041186

約数列:

[1, 2, 7, 14, 277, 554, 1939, 3878, 5381, 10762, 37667, 75334, 1490537, 2981074, 10433759, 20867518]

約数ペア:

[(1, 20867518), (2, 10433759), (7, 2981074), (14, 1490537), (277, 75334), (554, 37667), (1939, 10762), (3878, 5381)]