20016297

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{277}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 35156992

約数和(自身を除く): 15140695

約数列:

[1, 3, 7, 9, 21, 31, 37, 63, 93, 111, 217, 259, 277, 279, 333, 651, 777, 831, 1147, 1939, 1953, 2331, 2493, 3441, 5817, 8029, 8587, 10249, 10323, 17451, 24087, 25761, 30747, 60109, 71743, 72261, 77283, 92241, 180327, 215229, 317719, 540981, 645687, 953157, 2224033, 2859471, 6672099, 20016297]

約数ペア:

[(1, 20016297), (3, 6672099), (7, 2859471), (9, 2224033), (21, 953157), (31, 645687), (37, 540981), (63, 317719), (93, 215229), (111, 180327), (217, 92241), (259, 77283), (277, 72261), (279, 71743), (333, 60109), (651, 30747), (777, 25761), (831, 24087), (1147, 17451), (1939, 10323), (1953, 10249), (2331, 8587), (2493, 8029), (3441, 5817)]