20905786

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{3943}}^1$

素因数の和:4197

約数の個数: 16

約数和(自身を含む): 34360128

約数和(自身を除く): 13454342

約数列:

[1, 2, 11, 22, 241, 482, 2651, 3943, 5302, 7886, 43373, 86746, 950263, 1900526, 10452893, 20905786]

約数ペア:

[(1, 20905786), (2, 10452893), (11, 1900526), (22, 950263), (241, 86746), (482, 43373), (2651, 7886), (3943, 5302)]