20820878

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{6113}}^1$

素因数の和:6259

約数の個数: 16

約数和(自身を含む): 33896016

約数和(自身を除く): 13075138

約数列:

[1, 2, 13, 26, 131, 262, 1703, 3406, 6113, 12226, 79469, 158938, 800803, 1601606, 10410439, 20820878]

約数ペア:

[(1, 20820878), (2, 10410439), (13, 1601606), (26, 800803), (131, 158938), (262, 79469), (1703, 12226), (3406, 6113)]