21133953

素因数分解:

$3^5\times {\mathrm{29}}^1\times {\mathrm{2999}}^1$

素因数の和:3043

約数の個数: 24

約数和(自身を含む): 32760000

約数和(自身を除く): 11626047

約数列:

[1, 3, 9, 27, 29, 81, 87, 243, 261, 783, 2349, 2999, 7047, 8997, 26991, 80973, 86971, 242919, 260913, 728757, 782739, 2348217, 7044651, 21133953]

約数ペア:

[(1, 21133953), (3, 7044651), (9, 2348217), (27, 782739), (29, 728757), (81, 260913), (87, 242919), (243, 86971), (261, 80973), (783, 26991), (2349, 8997), (2999, 7047)]