157425471

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{277}}^1$

素因数の和:421

約数の個数: 64

約数和(自身を含む): 278978560

約数和(自身を除く): 121553089

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 93, 97, 189, 217, 277, 279, 291, 651, 679, 831, 837, 873, 1939, 1953, 2037, 2493, 2619, 3007, 5817, 5859, 6111, 7479, 8587, 9021, 17451, 18333, 21049, 25761, 26869, 27063, 52353, 60109, 63147, 77283, 80607, 81189, 180327, 188083, 189441, 231849, 241821, 540981, 564249, 568323, 725463, 832939, 1622943, 1692747, 2498817, 5078241, 5830573, 7496451, 17491719, 22489353, 52475157, 157425471]

約数ペア:

[(1, 157425471), (3, 52475157), (7, 22489353), (9, 17491719), (21, 7496451), (27, 5830573), (31, 5078241), (63, 2498817), (93, 1692747), (97, 1622943), (189, 832939), (217, 725463), (277, 568323), (279, 564249), (291, 540981), (651, 241821), (679, 231849), (831, 189441), (837, 188083), (873, 180327), (1939, 81189), (1953, 80607), (2037, 77283), (2493, 63147), (2619, 60109), (3007, 52353), (5817, 27063), (5859, 26869), (6111, 25761), (7479, 21049), (8587, 18333), (9021, 17451)]