20956656

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{643}}^1$

素因数の和:758

約数の個数: 80

約数和(自身を含む): 62607104

約数和(自身を除く): 41650448

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 97, 112, 168, 194, 291, 336, 388, 582, 643, 679, 776, 1164, 1286, 1358, 1552, 1929, 2037, 2328, 2572, 2716, 3858, 4074, 4501, 4656, 5144, 5432, 7716, 8148, 9002, 10288, 10864, 13503, 15432, 16296, 18004, 27006, 30864, 32592, 36008, 54012, 62371, 72016, 108024, 124742, 187113, 216048, 249484, 374226, 436597, 498968, 748452, 873194, 997936, 1309791, 1496904, 1746388, 2619582, 2993808, 3492776, 5239164, 6985552, 10478328, 20956656]

約数ペア:

[(1, 20956656), (2, 10478328), (3, 6985552), (4, 5239164), (6, 3492776), (7, 2993808), (8, 2619582), (12, 1746388), (14, 1496904), (16, 1309791), (21, 997936), (24, 873194), (28, 748452), (42, 498968), (48, 436597), (56, 374226), (84, 249484), (97, 216048), (112, 187113), (168, 124742), (194, 108024), (291, 72016), (336, 62371), (388, 54012), (582, 36008), (643, 32592), (679, 30864), (776, 27006), (1164, 18004), (1286, 16296), (1358, 15432), (1552, 13503), (1929, 10864), (2037, 10288), (2328, 9002), (2572, 8148), (2716, 7716), (3858, 5432), (4074, 5144), (4501, 4656)]