81351347

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{197}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 105836544

約数和(自身を除く): 24485197

約数列:

[1, 7, 11, 31, 77, 173, 197, 217, 341, 1211, 1379, 1903, 2167, 2387, 5363, 6107, 13321, 15169, 34081, 37541, 42749, 58993, 67177, 238567, 374891, 412951, 470239, 1056511, 2624237, 7395577, 11621621, 81351347]

約数ペア:

[(1, 81351347), (7, 11621621), (11, 7395577), (31, 2624237), (77, 1056511), (173, 470239), (197, 412951), (217, 374891), (341, 238567), (1211, 67177), (1379, 58993), (1903, 42749), (2167, 37541), (2387, 34081), (5363, 15169), (6107, 13321)]