21257918

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{5059}}^1$

素因数の和:5263

約数の個数: 16

約数和(自身を含む): 34974720

約数和(自身を除く): 13716802

約数列:

[1, 2, 11, 22, 191, 382, 2101, 4202, 5059, 10118, 55649, 111298, 966269, 1932538, 10628959, 21257918]

約数ペア:

[(1, 21257918), (2, 10628959), (11, 1932538), (22, 966269), (191, 111298), (382, 55649), (2101, 10118), (4202, 5059)]