20680893

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{379}}^1$

素因数の和:478

約数の個数: 32

約数和(自身を含む): 32102400

約数和(自身を除く): 11421507

約数列:

[1, 3, 9, 27, 43, 47, 129, 141, 379, 387, 423, 1137, 1161, 1269, 2021, 3411, 6063, 10233, 16297, 17813, 18189, 48891, 53439, 54567, 146673, 160317, 440019, 480951, 765959, 2297877, 6893631, 20680893]

約数ペア:

[(1, 20680893), (3, 6893631), (9, 2297877), (27, 765959), (43, 480951), (47, 440019), (129, 160317), (141, 146673), (379, 54567), (387, 53439), (423, 48891), (1137, 18189), (1161, 17813), (1269, 16297), (2021, 10233), (3411, 6063)]