21173673

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{1087}}^1$

素因数の和:1284

約数の個数: 16

約数和(自身を含む): 29106176

約数和(自身を除く): 7932503

約数列:

[1, 3, 43, 129, 151, 453, 1087, 3261, 6493, 19479, 46741, 140223, 164137, 492411, 7057891, 21173673]

約数ペア:

[(1, 21173673), (3, 7057891), (43, 492411), (129, 164137), (151, 140223), (453, 46741), (1087, 19479), (3261, 6493)]