21917027279

素因数分解:

$7^2\times {\mathrm{419}}^1\times {\mathrm{1067509}}^1$

素因数の和:1067942

約数の個数: 12

約数和(自身を含む): 25556189400

約数和(自身を除く): 3639162121

約数列:

[1, 7, 49, 419, 2933, 20531, 1067509, 7472563, 52307941, 447286271, 3131003897, 21917027279]

約数ペア:

[(1, 21917027279), (7, 3131003897), (49, 447286271), (419, 52307941), (2933, 7472563), (20531, 1067509)]