21379996

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{485909}}^1$

素因数の和:485924

約数の個数: 12

約数和(自身を含む): 40816440

約数和(自身を除く): 19436444

約数列:

[1, 2, 4, 11, 22, 44, 485909, 971818, 1943636, 5344999, 10689998, 21379996]

約数ペア:

[(1, 21379996), (2, 10689998), (4, 5344999), (11, 1943636), (22, 971818), (44, 485909)]