21925563

素因数分解:

$3^1\times {\mathrm{11}}^3\times {\mathrm{17}}^2\times {\mathrm{19}}^1$

素因数の和:89

約数の個数: 48

約数和(自身を含む): 35955840

約数和(自身を除く): 14030277

約数列:

[1, 3, 11, 17, 19, 33, 51, 57, 121, 187, 209, 289, 323, 363, 561, 627, 867, 969, 1331, 2057, 2299, 3179, 3553, 3993, 5491, 6171, 6897, 9537, 10659, 16473, 22627, 25289, 34969, 39083, 60401, 67881, 75867, 104907, 117249, 181203, 384659, 429913, 664411, 1153977, 1289739, 1993233, 7308521, 21925563]

約数ペア:

[(1, 21925563), (3, 7308521), (11, 1993233), (17, 1289739), (19, 1153977), (33, 664411), (51, 429913), (57, 384659), (121, 181203), (187, 117249), (209, 104907), (289, 75867), (323, 67881), (363, 60401), (561, 39083), (627, 34969), (867, 25289), (969, 22627), (1331, 16473), (2057, 10659), (2299, 9537), (3179, 6897), (3553, 6171), (3993, 5491)]