21791286

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{701}}^1$

素因数の和:877

約数の個数: 48

約数和(自身を含む): 51908688

約数和(自身を除く): 30117402

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 157, 198, 314, 471, 701, 942, 1402, 1413, 1727, 2103, 2826, 3454, 4206, 5181, 6309, 7711, 10362, 12618, 15422, 15543, 23133, 31086, 46266, 69399, 110057, 138798, 220114, 330171, 660342, 990513, 1210627, 1981026, 2421254, 3631881, 7263762, 10895643, 21791286]

約数ペア:

[(1, 21791286), (2, 10895643), (3, 7263762), (6, 3631881), (9, 2421254), (11, 1981026), (18, 1210627), (22, 990513), (33, 660342), (66, 330171), (99, 220114), (157, 138798), (198, 110057), (314, 69399), (471, 46266), (701, 31086), (942, 23133), (1402, 15543), (1413, 15422), (1727, 12618), (2103, 10362), (2826, 7711), (3454, 6309), (4206, 5181)]