20991432011

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{277}}^1\times {\mathrm{6373}}^1$

素因数の和:6731

約数の個数: 32

約数和(自身を含む): 24495740928

約数和(自身を除く): 3504308917

約数列:

[1, 11, 23, 47, 253, 277, 517, 1081, 3047, 6371, 6373, 11891, 13019, 70081, 70103, 143209, 146579, 299437, 299531, 1612369, 1765321, 3293807, 3294841, 6889213, 19418531, 40602383, 75781343, 82970087, 446626213, 912670957, 1908312001, 20991432011]

約数ペア:

[(1, 20991432011), (11, 1908312001), (23, 912670957), (47, 446626213), (253, 82970087), (277, 75781343), (517, 40602383), (1081, 19418531), (3047, 6889213), (6371, 3294841), (6373, 3293807), (11891, 1765321), (13019, 1612369), (70081, 299531), (70103, 299437), (143209, 146579)]