20151894987

素因数分解:

$3^8\times 7^2\times {\mathrm{62683}}^1$

素因数の和:62721

約数の個数: 54

約数和(自身を含む): 35161774908

約数和(自身を除く): 15009879921

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 441, 567, 729, 1323, 1701, 2187, 3969, 5103, 6561, 11907, 15309, 35721, 45927, 62683, 107163, 188049, 321489, 438781, 564147, 1316343, 1692441, 3071467, 3949029, 5077323, 9214401, 11847087, 15231969, 27643203, 35541261, 45695907, 82929609, 106623783, 137087721, 248788827, 319871349, 411263163, 746366481, 959614047, 2239099443, 2878842141, 6717298329, 20151894987]

約数ペア:

[(1, 20151894987), (3, 6717298329), (7, 2878842141), (9, 2239099443), (21, 959614047), (27, 746366481), (49, 411263163), (63, 319871349), (81, 248788827), (147, 137087721), (189, 106623783), (243, 82929609), (441, 45695907), (567, 35541261), (729, 27643203), (1323, 15231969), (1701, 11847087), (2187, 9214401), (3969, 5077323), (5103, 3949029), (6561, 3071467), (11907, 1692441), (15309, 1316343), (35721, 564147), (45927, 438781), (62683, 321489), (107163, 188049)]