15991578

素因数分解:

$2^1\times 3^2\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{107}}^1$

素因数の和:176

約数の個数: 72

約数和(自身を含む): 38514528

約数和(自身を除く): 22522950

約数列:

[1, 2, 3, 6, 9, 18, 19, 23, 38, 46, 57, 69, 107, 114, 138, 171, 207, 214, 321, 342, 361, 414, 437, 642, 722, 874, 963, 1083, 1311, 1926, 2033, 2166, 2461, 2622, 3249, 3933, 4066, 4922, 6099, 6498, 7383, 7866, 8303, 12198, 14766, 16606, 18297, 22149, 24909, 36594, 38627, 44298, 46759, 49818, 74727, 77254, 93518, 115881, 140277, 149454, 231762, 280554, 347643, 420831, 695286, 841662, 888421, 1776842, 2665263, 5330526, 7995789, 15991578]

約数ペア:

[(1, 15991578), (2, 7995789), (3, 5330526), (6, 2665263), (9, 1776842), (18, 888421), (19, 841662), (23, 695286), (38, 420831), (46, 347643), (57, 280554), (69, 231762), (107, 149454), (114, 140277), (138, 115881), (171, 93518), (207, 77254), (214, 74727), (321, 49818), (342, 46759), (361, 44298), (414, 38627), (437, 36594), (642, 24909), (722, 22149), (874, 18297), (963, 16606), (1083, 14766), (1311, 12198), (1926, 8303), (2033, 7866), (2166, 7383), (2461, 6498), (2622, 6099), (3249, 4922), (3933, 4066)]