21654039

素因数分解:

$3^1\times {\mathrm{11}}^4\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:93

約数の個数: 40

約数和(自身を含む): 34786800

約数和(自身を除く): 13132761

約数列:

[1, 3, 11, 17, 29, 33, 51, 87, 121, 187, 319, 363, 493, 561, 957, 1331, 1479, 2057, 3509, 3993, 5423, 6171, 10527, 14641, 16269, 22627, 38599, 43923, 59653, 67881, 115797, 178959, 248897, 424589, 656183, 746691, 1273767, 1968549, 7218013, 21654039]

約数ペア:

[(1, 21654039), (3, 7218013), (11, 1968549), (17, 1273767), (29, 746691), (33, 656183), (51, 424589), (87, 248897), (121, 178959), (187, 115797), (319, 67881), (363, 59653), (493, 43923), (561, 38599), (957, 22627), (1331, 16269), (1479, 14641), (2057, 10527), (3509, 6171), (3993, 5423)]