13871767

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:223

約数の個数: 32

約数和(自身を含む): 18385920

約数和(自身を除く): 4514153

約数列:

[1, 7, 13, 19, 71, 91, 113, 133, 247, 497, 791, 923, 1349, 1469, 1729, 2147, 6461, 8023, 9443, 10283, 15029, 17537, 27911, 56161, 104299, 122759, 152437, 195377, 730093, 1067059, 1981681, 13871767]

約数ペア:

[(1, 13871767), (7, 1981681), (13, 1067059), (19, 730093), (71, 195377), (91, 152437), (113, 122759), (133, 104299), (247, 56161), (497, 27911), (791, 17537), (923, 15029), (1349, 10283), (1469, 9443), (1729, 8023), (2147, 6461)]