19678978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{15161}}^1$

素因数の和:15233

約数の個数: 16

約数和(自身を含む): 32749920

約数和(自身を除く): 13070942

約数列:

[1, 2, 11, 22, 59, 118, 649, 1298, 15161, 30322, 166771, 333542, 894499, 1788998, 9839489, 19678978]

約数ペア:

[(1, 19678978), (2, 9839489), (11, 1788998), (22, 894499), (59, 333542), (118, 166771), (649, 30322), (1298, 15161)]