21336357

素因数分解:

$3^1\times 7^1\times {\mathrm{787}}^1\times {\mathrm{1291}}^1$

素因数の和:2088

約数の個数: 16

約数和(自身を含む): 32579072

約数和(自身を除く): 11242715

約数列:

[1, 3, 7, 21, 787, 1291, 2361, 3873, 5509, 9037, 16527, 27111, 1016017, 3048051, 7112119, 21336357]

約数ペア:

[(1, 21336357), (3, 7112119), (7, 3048051), (21, 1016017), (787, 27111), (1291, 16527), (2361, 9037), (3873, 5509)]