178502961

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{2089}}^1$

素因数の和:2425

約数の個数: 32

約数和(自身を含む): 294004480

約数和(自身を除く): 115501519

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 313, 939, 2089, 2191, 4069, 6267, 6573, 12207, 14623, 27157, 28483, 43869, 81471, 85449, 190099, 570297, 653857, 1961571, 4576999, 8500141, 13730997, 25500423, 59500987, 178502961]

約数ペア:

[(1, 178502961), (3, 59500987), (7, 25500423), (13, 13730997), (21, 8500141), (39, 4576999), (91, 1961571), (273, 653857), (313, 570297), (939, 190099), (2089, 85449), (2191, 81471), (4069, 43869), (6267, 28483), (6573, 27157), (12207, 14623)]