21207288

素因数分解:

$2^3\times 3^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{373}}^1$

素因数の和:508

約数の個数: 64

約数和(自身を含む): 56010240

約数和(自身を除く): 34802952

約数列:

[1, 2, 3, 4, 6, 8, 12, 23, 24, 46, 69, 92, 103, 138, 184, 206, 276, 309, 373, 412, 552, 618, 746, 824, 1119, 1236, 1492, 2238, 2369, 2472, 2984, 4476, 4738, 7107, 8579, 8952, 9476, 14214, 17158, 18952, 25737, 28428, 34316, 38419, 51474, 56856, 68632, 76838, 102948, 115257, 153676, 205896, 230514, 307352, 461028, 883637, 922056, 1767274, 2650911, 3534548, 5301822, 7069096, 10603644, 21207288]

約数ペア:

[(1, 21207288), (2, 10603644), (3, 7069096), (4, 5301822), (6, 3534548), (8, 2650911), (12, 1767274), (23, 922056), (24, 883637), (46, 461028), (69, 307352), (92, 230514), (103, 205896), (138, 153676), (184, 115257), (206, 102948), (276, 76838), (309, 68632), (373, 56856), (412, 51474), (552, 38419), (618, 34316), (746, 28428), (824, 25737), (1119, 18952), (1236, 17158), (1492, 14214), (2238, 9476), (2369, 8952), (2472, 8579), (2984, 7107), (4476, 4738)]