31310279

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1009}}^1$

素因数の和:1071

約数の個数: 32

約数和(自身を含む): 43438080

約数和(自身を除く): 12127801

約数列:

[1, 7, 11, 13, 31, 77, 91, 143, 217, 341, 403, 1001, 1009, 2387, 2821, 4433, 7063, 11099, 13117, 31031, 31279, 77693, 91819, 144287, 218953, 344069, 406627, 1010009, 2408483, 2846389, 4472897, 31310279]

約数ペア:

[(1, 31310279), (7, 4472897), (11, 2846389), (13, 2408483), (31, 1010009), (77, 406627), (91, 344069), (143, 218953), (217, 144287), (341, 91819), (403, 77693), (1001, 31279), (1009, 31031), (2387, 13117), (2821, 11099), (4433, 7063)]