20684097

素因数分解:

$3^2\times 7^1\times {\mathrm{397}}^1\times {\mathrm{827}}^1$

素因数の和:1237

約数の個数: 24

約数和(自身を含む): 34272576

約数和(自身を除く): 13588479

約数列:

[1, 3, 7, 9, 21, 63, 397, 827, 1191, 2481, 2779, 3573, 5789, 7443, 8337, 17367, 25011, 52101, 328319, 984957, 2298233, 2954871, 6894699, 20684097]

約数ペア:

[(1, 20684097), (3, 6894699), (7, 2954871), (9, 2298233), (21, 984957), (63, 328319), (397, 52101), (827, 25011), (1191, 17367), (2481, 8337), (2779, 7443), (3573, 5789)]