21836704090

素因数分解:

$2^1\times 5^1\times {\mathrm{1289}}^1\times {\mathrm{1694081}}^1$

素因数の和:1695377

約数の個数: 16

約数和(自身を含む): 39336584040

約数和(自身を除く): 17499879950

約数列:

[1, 2, 5, 10, 1289, 2578, 6445, 12890, 1694081, 3388162, 8470405, 16940810, 2183670409, 4367340818, 10918352045, 21836704090]

約数ペア:

[(1, 21836704090), (2, 10918352045), (5, 4367340818), (10, 2183670409), (1289, 16940810), (2578, 8470405), (6445, 3388162), (12890, 1694081)]