21912903

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{15313}}^1$

素因数の和:15375

約数の個数: 16

約数和(自身を含む): 33078240

約数和(自身を除く): 11165337

約数列:

[1, 3, 9, 27, 53, 159, 477, 1431, 15313, 45939, 137817, 413451, 811589, 2434767, 7304301, 21912903]

約数ペア:

[(1, 21912903), (3, 7304301), (9, 2434767), (27, 811589), (53, 413451), (159, 137817), (477, 45939), (1431, 15313)]