20421072

素因数分解:

$2^4\times 3^4\times 7^1\times {\mathrm{2251}}^1$

素因数の和:2278

約数の個数: 100

約数和(自身を含む): 67578016

約数和(自身を除く): 47156944

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 36, 42, 48, 54, 56, 63, 72, 81, 84, 108, 112, 126, 144, 162, 168, 189, 216, 252, 324, 336, 378, 432, 504, 567, 648, 756, 1008, 1134, 1296, 1512, 2251, 2268, 3024, 4502, 4536, 6753, 9004, 9072, 13506, 15757, 18008, 20259, 27012, 31514, 36016, 40518, 47271, 54024, 60777, 63028, 81036, 94542, 108048, 121554, 126056, 141813, 162072, 182331, 189084, 243108, 252112, 283626, 324144, 364662, 378168, 425439, 486216, 567252, 729324, 756336, 850878, 972432, 1134504, 1276317, 1458648, 1701756, 2269008, 2552634, 2917296, 3403512, 5105268, 6807024, 10210536, 20421072]

約数ペア:

[(1, 20421072), (2, 10210536), (3, 6807024), (4, 5105268), (6, 3403512), (7, 2917296), (8, 2552634), (9, 2269008), (12, 1701756), (14, 1458648), (16, 1276317), (18, 1134504), (21, 972432), (24, 850878), (27, 756336), (28, 729324), (36, 567252), (42, 486216), (48, 425439), (54, 378168), (56, 364662), (63, 324144), (72, 283626), (81, 252112), (84, 243108), (108, 189084), (112, 182331), (126, 162072), (144, 141813), (162, 126056), (168, 121554), (189, 108048), (216, 94542), (252, 81036), (324, 63028), (336, 60777), (378, 54024), (432, 47271), (504, 40518), (567, 36016), (648, 31514), (756, 27012), (1008, 20259), (1134, 18008), (1296, 15757), (1512, 13506), (2251, 9072), (2268, 9004), (3024, 6753), (4502, 4536)]