21558064

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{122489}}^1$

素因数の和:122508

約数の個数: 20

約数和(自身を含む): 45566280

約数和(自身を除く): 24008216

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 122489, 244978, 489956, 979912, 1347379, 1959824, 2694758, 5389516, 10779032, 21558064]

約数ペア:

[(1, 21558064), (2, 10779032), (4, 5389516), (8, 2694758), (11, 1959824), (16, 1347379), (22, 979912), (44, 489956), (88, 244978), (176, 122489)]