81204851

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1$

素因数の和:335

約数の個数: 32

約数和(自身を含む): 103420800

約数和(自身を除く): 22215949

約数列:

[1, 7, 13, 53, 91, 113, 149, 371, 689, 791, 1043, 1469, 1937, 4823, 5989, 7897, 10283, 13559, 16837, 41923, 55279, 77857, 102661, 117859, 218881, 544999, 718627, 892361, 1532167, 6246527, 11600693, 81204851]

約数ペア:

[(1, 81204851), (7, 11600693), (13, 6246527), (53, 1532167), (91, 892361), (113, 718627), (149, 544999), (371, 218881), (689, 117859), (791, 102661), (1043, 77857), (1469, 55279), (1937, 41923), (4823, 16837), (5989, 13559), (7897, 10283)]