2178118908

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{509}}^1\times {\mathrm{16981}}^1$

素因数の和:17507

約数の個数: 72

約数和(自身を含む): 6305076960

約数和(自身を除く): 4126958052

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 509, 1018, 1527, 2036, 3054, 3563, 4581, 6108, 7126, 9162, 10689, 14252, 16981, 18324, 21378, 32067, 33962, 42756, 50943, 64134, 67924, 101886, 118867, 128268, 152829, 203772, 237734, 305658, 356601, 475468, 611316, 713202, 1069803, 1426404, 2139606, 4279212, 8643329, 17286658, 25929987, 34573316, 51859974, 60503303, 77789961, 103719948, 121006606, 155579922, 181509909, 242013212, 311159844, 363019818, 544529727, 726039636, 1089059454, 2178118908]

約数ペア:

[(1, 2178118908), (2, 1089059454), (3, 726039636), (4, 544529727), (6, 363019818), (7, 311159844), (9, 242013212), (12, 181509909), (14, 155579922), (18, 121006606), (21, 103719948), (28, 77789961), (36, 60503303), (42, 51859974), (63, 34573316), (84, 25929987), (126, 17286658), (252, 8643329), (509, 4279212), (1018, 2139606), (1527, 1426404), (2036, 1069803), (3054, 713202), (3563, 611316), (4581, 475468), (6108, 356601), (7126, 305658), (9162, 237734), (10689, 203772), (14252, 152829), (16981, 128268), (18324, 118867), (21378, 101886), (32067, 67924), (33962, 64134), (42756, 50943)]