20090511

素因数分解:

$3^6\times 7^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:183

約数の個数: 56

約数和(自身を含む): 35815424

約数和(自身を除く): 15724913

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 81, 93, 127, 189, 217, 243, 279, 381, 567, 651, 729, 837, 889, 1143, 1701, 1953, 2511, 2667, 3429, 3937, 5103, 5859, 7533, 8001, 10287, 11811, 17577, 22599, 24003, 27559, 30861, 35433, 52731, 72009, 82677, 92583, 106299, 158193, 216027, 248031, 318897, 648081, 744093, 956691, 2232279, 2870073, 6696837, 20090511]

約数ペア:

[(1, 20090511), (3, 6696837), (7, 2870073), (9, 2232279), (21, 956691), (27, 744093), (31, 648081), (63, 318897), (81, 248031), (93, 216027), (127, 158193), (189, 106299), (217, 92583), (243, 82677), (279, 72009), (381, 52731), (567, 35433), (651, 30861), (729, 27559), (837, 24003), (889, 22599), (1143, 17577), (1701, 11811), (1953, 10287), (2511, 8001), (2667, 7533), (3429, 5859), (3937, 5103)]