19563271

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{719}}^1$

素因数の和:775

約数の個数: 24

約数和(自身を含む): 25297920

約数和(自身を除く): 5734649

約数列:

[1, 7, 13, 23, 91, 161, 169, 299, 719, 1183, 2093, 3887, 5033, 9347, 16537, 27209, 65429, 115759, 121511, 214981, 850577, 1504867, 2794753, 19563271]

約数ペア:

[(1, 19563271), (7, 2794753), (13, 1504867), (23, 850577), (91, 214981), (161, 121511), (169, 115759), (299, 65429), (719, 27209), (1183, 16537), (2093, 9347), (3887, 5033)]