199977998

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{1789}}^1\times {\mathrm{5081}}^1$

素因数の和:6883

約数の個数: 16

約数和(自身を含む): 327484080

約数和(自身を除く): 127506082

約数列:

[1, 2, 11, 22, 1789, 3578, 5081, 10162, 19679, 39358, 55891, 111782, 9089909, 18179818, 99988999, 199977998]

約数ペア:

[(1, 199977998), (2, 99988999), (11, 18179818), (22, 9089909), (1789, 111782), (3578, 55891), (5081, 39358), (10162, 19679)]