21788897108

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{495202207}}^1$

素因数の和:495202222

約数の個数: 12

約数和(自身を含む): 41596985472

約数和(自身を除く): 19808088364

約数列:

[1, 2, 4, 11, 22, 44, 495202207, 990404414, 1980808828, 5447224277, 10894448554, 21788897108]

約数ペア:

[(1, 21788897108), (2, 10894448554), (4, 5447224277), (11, 1980808828), (22, 990404414), (44, 495202207)]