221580919

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{263}}^1\times {\mathrm{5233}}^1$

素因数の和:5526

約数の個数: 16

約数和(自身を含む): 265300992

約数和(自身を除く): 43720073

約数列:

[1, 7, 23, 161, 263, 1841, 5233, 6049, 36631, 42343, 120359, 842513, 1376279, 9633953, 31654417, 221580919]

約数ペア:

[(1, 221580919), (7, 31654417), (23, 9633953), (161, 1376279), (263, 842513), (1841, 120359), (5233, 42343), (6049, 36631)]