21635817

素因数分解:

$3^1\times 7^1\times {\mathrm{757}}^1\times {\mathrm{1361}}^1$

素因数の和:2128

約数の個数: 16

約数和(自身を含む): 33036672

約数和(自身を除く): 11400855

約数列:

[1, 3, 7, 21, 757, 1361, 2271, 4083, 5299, 9527, 15897, 28581, 1030277, 3090831, 7211939, 21635817]

約数ペア:

[(1, 21635817), (3, 7211939), (7, 3090831), (21, 1030277), (757, 28581), (1361, 15897), (2271, 9527), (4083, 5299)]