21965163

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{5081}}^1$

素因数の和:5226

約数の個数: 16

約数和(自身を含む): 32199552

約数和(自身を除く): 10234389

約数列:

[1, 3, 11, 33, 131, 393, 1441, 4323, 5081, 15243, 55891, 167673, 665611, 1996833, 7321721, 21965163]

約数ペア:

[(1, 21965163), (3, 7321721), (11, 1996833), (33, 665611), (131, 167673), (393, 55891), (1441, 15243), (4323, 5081)]