20906622

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{331}}^1$

素因数の和:390

約数の個数: 72

約数和(自身を含む): 51662520

約数和(自身を除く): 30755898

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 29, 33, 58, 66, 87, 99, 121, 174, 198, 242, 261, 319, 331, 363, 522, 638, 662, 726, 957, 993, 1089, 1914, 1986, 2178, 2871, 2979, 3509, 3641, 5742, 5958, 7018, 7282, 9599, 10527, 10923, 19198, 21054, 21846, 28797, 31581, 32769, 40051, 57594, 63162, 65538, 80102, 86391, 105589, 120153, 172782, 211178, 240306, 316767, 360459, 633534, 720918, 950301, 1161479, 1900602, 2322958, 3484437, 6968874, 10453311, 20906622]

約数ペア:

[(1, 20906622), (2, 10453311), (3, 6968874), (6, 3484437), (9, 2322958), (11, 1900602), (18, 1161479), (22, 950301), (29, 720918), (33, 633534), (58, 360459), (66, 316767), (87, 240306), (99, 211178), (121, 172782), (174, 120153), (198, 105589), (242, 86391), (261, 80102), (319, 65538), (331, 63162), (363, 57594), (522, 40051), (638, 32769), (662, 31581), (726, 28797), (957, 21846), (993, 21054), (1089, 19198), (1914, 10923), (1986, 10527), (2178, 9599), (2871, 7282), (2979, 7018), (3509, 5958), (3641, 5742)]