21686724

素因数分解:

$2^2\times 3^3\times {\mathrm{157}}^1\times {\mathrm{1279}}^1$

素因数の和:1449

約数の個数: 48

約数和(自身を含む): 56627200

約数和(自身を除く): 34940476

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 157, 314, 471, 628, 942, 1279, 1413, 1884, 2558, 2826, 3837, 4239, 5116, 5652, 7674, 8478, 11511, 15348, 16956, 23022, 34533, 46044, 69066, 138132, 200803, 401606, 602409, 803212, 1204818, 1807227, 2409636, 3614454, 5421681, 7228908, 10843362, 21686724]

約数ペア:

[(1, 21686724), (2, 10843362), (3, 7228908), (4, 5421681), (6, 3614454), (9, 2409636), (12, 1807227), (18, 1204818), (27, 803212), (36, 602409), (54, 401606), (108, 200803), (157, 138132), (314, 69066), (471, 46044), (628, 34533), (942, 23022), (1279, 16956), (1413, 15348), (1884, 11511), (2558, 8478), (2826, 7674), (3837, 5652), (4239, 5116)]