21000362878

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{457}}^1\times {\mathrm{189887}}^1$

素因数の和:190368

約数の個数: 24

約数和(自身を含む): 34700512896

約数和(自身を除く): 13700150018

約数列:

[1, 2, 11, 22, 121, 242, 457, 914, 5027, 10054, 55297, 110594, 189887, 379774, 2088757, 4177514, 22976327, 45952654, 86778359, 173556718, 954561949, 1909123898, 10500181439, 21000362878]

約数ペア:

[(1, 21000362878), (2, 10500181439), (11, 1909123898), (22, 954561949), (121, 173556718), (242, 86778359), (457, 45952654), (914, 22976327), (5027, 4177514), (10054, 2088757), (55297, 379774), (110594, 189887)]