20856792

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{397}}^1$

素因数の和:616

約数の個数: 64

約数和(自身を含む): 57312000

約数和(自身を除く): 36455208

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 132, 199, 264, 397, 398, 597, 794, 796, 1191, 1194, 1588, 1592, 2189, 2382, 2388, 3176, 4367, 4378, 4764, 4776, 6567, 8734, 8756, 9528, 13101, 13134, 17468, 17512, 26202, 26268, 34936, 52404, 52536, 79003, 104808, 158006, 237009, 316012, 474018, 632024, 869033, 948036, 1738066, 1896072, 2607099, 3476132, 5214198, 6952264, 10428396, 20856792]

約数ペア:

[(1, 20856792), (2, 10428396), (3, 6952264), (4, 5214198), (6, 3476132), (8, 2607099), (11, 1896072), (12, 1738066), (22, 948036), (24, 869033), (33, 632024), (44, 474018), (66, 316012), (88, 237009), (132, 158006), (199, 104808), (264, 79003), (397, 52536), (398, 52404), (597, 34936), (794, 26268), (796, 26202), (1191, 17512), (1194, 17468), (1588, 13134), (1592, 13101), (2189, 9528), (2382, 8756), (2388, 8734), (3176, 6567), (4367, 4776), (4378, 4764)]