21322156

素因数分解:

$2^2\times {\mathrm{1291}}^1\times {\mathrm{4129}}^1$

素因数の和:5424

約数の個数: 12

約数和(自身を含む): 37351720

約数和(自身を除く): 16029564

約数列:

[1, 2, 4, 1291, 2582, 4129, 5164, 8258, 16516, 5330539, 10661078, 21322156]

約数ペア:

[(1, 21322156), (2, 10661078), (4, 5330539), (1291, 16516), (2582, 8258), (4129, 5164)]