21647304

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:264

約数の個数: 128

約数和(自身を含む): 69888000

約数和(自身を除く): 48240696

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 84, 103, 108, 126, 139, 168, 189, 206, 216, 252, 278, 309, 378, 412, 417, 504, 556, 618, 721, 756, 824, 834, 927, 973, 1112, 1236, 1251, 1442, 1512, 1668, 1854, 1946, 2163, 2472, 2502, 2781, 2884, 2919, 3336, 3708, 3753, 3892, 4326, 5004, 5562, 5768, 5838, 6489, 7416, 7506, 7784, 8652, 8757, 10008, 11124, 11676, 12978, 14317, 15012, 17304, 17514, 19467, 22248, 23352, 25956, 26271, 28634, 30024, 35028, 38934, 42951, 51912, 52542, 57268, 70056, 77868, 85902, 100219, 105084, 114536, 128853, 155736, 171804, 200438, 210168, 257706, 300657, 343608, 386559, 400876, 515412, 601314, 773118, 801752, 901971, 1030824, 1202628, 1546236, 1803942, 2405256, 2705913, 3092472, 3607884, 5411826, 7215768, 10823652, 21647304]

約数ペア:

[(1, 21647304), (2, 10823652), (3, 7215768), (4, 5411826), (6, 3607884), (7, 3092472), (8, 2705913), (9, 2405256), (12, 1803942), (14, 1546236), (18, 1202628), (21, 1030824), (24, 901971), (27, 801752), (28, 773118), (36, 601314), (42, 515412), (54, 400876), (56, 386559), (63, 343608), (72, 300657), (84, 257706), (103, 210168), (108, 200438), (126, 171804), (139, 155736), (168, 128853), (189, 114536), (206, 105084), (216, 100219), (252, 85902), (278, 77868), (309, 70056), (378, 57268), (412, 52542), (417, 51912), (504, 42951), (556, 38934), (618, 35028), (721, 30024), (756, 28634), (824, 26271), (834, 25956), (927, 23352), (973, 22248), (1112, 19467), (1236, 17514), (1251, 17304), (1442, 15012), (1512, 14317), (1668, 12978), (1854, 11676), (1946, 11124), (2163, 10008), (2472, 8757), (2502, 8652), (2781, 7784), (2884, 7506), (2919, 7416), (3336, 6489), (3708, 5838), (3753, 5768), (3892, 5562), (4326, 5004)]