20898717

素因数分解:

$3^1\times 7^1\times {\mathrm{467}}^1\times {\mathrm{2131}}^1$

素因数の和:2608

約数の個数: 16

約数和(自身を含む): 31928832

約数和(自身を除く): 11030115

約数列:

[1, 3, 7, 21, 467, 1401, 2131, 3269, 6393, 9807, 14917, 44751, 995177, 2985531, 6966239, 20898717]

約数ペア:

[(1, 20898717), (3, 6966239), (7, 2985531), (21, 995177), (467, 44751), (1401, 14917), (2131, 9807), (3269, 6393)]