21989522

素因数分解:

$2^1\times {\mathrm{83}}^1\times {\mathrm{139}}^1\times {\mathrm{953}}^1$

素因数の和:1177

約数の個数: 16

約数和(自身を含む): 33657120

約数和(自身を除く): 11667598

約数列:

[1, 2, 83, 139, 166, 278, 953, 1906, 11537, 23074, 79099, 132467, 158198, 264934, 10994761, 21989522]

約数ペア:

[(1, 21989522), (2, 10994761), (83, 264934), (139, 158198), (166, 132467), (278, 79099), (953, 23074), (1906, 11537)]