20266895

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{241}}^1$

素因数の和:407

約数の個数: 24

約数和(自身を含む): 27036240

約数和(自身を除く): 6769345

約数列:

[1, 5, 11, 55, 121, 139, 241, 605, 695, 1205, 1529, 2651, 7645, 13255, 16819, 29161, 33499, 84095, 145805, 167495, 368489, 1842445, 4053379, 20266895]

約数ペア:

[(1, 20266895), (5, 4053379), (11, 1842445), (55, 368489), (121, 167495), (139, 145805), (241, 84095), (605, 33499), (695, 29161), (1205, 16819), (1529, 13255), (2651, 7645)]