21705783

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{5021}}^1$

素因数の和:5166

約数の個数: 16

約数和(自身を含む): 31819392

約数和(自身を除く): 10113609

約数列:

[1, 3, 11, 33, 131, 393, 1441, 4323, 5021, 15063, 55231, 165693, 657751, 1973253, 7235261, 21705783]

約数ペア:

[(1, 21705783), (3, 7235261), (11, 1973253), (33, 657751), (131, 165693), (393, 55231), (1441, 15063), (4323, 5021)]