221621136

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1\times {\mathrm{997}}^1$

素因数の和:1440

約数の個数: 80

約数和(自身を含む): 626680128

約数和(自身を除く): 405058992

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 33, 44, 48, 66, 88, 132, 176, 264, 421, 528, 842, 997, 1263, 1684, 1994, 2526, 2991, 3368, 3988, 4631, 5052, 5982, 6736, 7976, 9262, 10104, 10967, 11964, 13893, 15952, 18524, 20208, 21934, 23928, 27786, 32901, 37048, 43868, 47856, 55572, 65802, 74096, 87736, 111144, 131604, 175472, 222288, 263208, 419737, 526416, 839474, 1259211, 1678948, 2518422, 3357896, 4617107, 5036844, 6715792, 9234214, 10073688, 13851321, 18468428, 20147376, 27702642, 36936856, 55405284, 73873712, 110810568, 221621136]

約数ペア:

[(1, 221621136), (2, 110810568), (3, 73873712), (4, 55405284), (6, 36936856), (8, 27702642), (11, 20147376), (12, 18468428), (16, 13851321), (22, 10073688), (24, 9234214), (33, 6715792), (44, 5036844), (48, 4617107), (66, 3357896), (88, 2518422), (132, 1678948), (176, 1259211), (264, 839474), (421, 526416), (528, 419737), (842, 263208), (997, 222288), (1263, 175472), (1684, 131604), (1994, 111144), (2526, 87736), (2991, 74096), (3368, 65802), (3988, 55572), (4631, 47856), (5052, 43868), (5982, 37048), (6736, 32901), (7976, 27786), (9262, 23928), (10104, 21934), (10967, 20208), (11964, 18524), (13893, 15952)]