21898108

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{997}}^1$

素因数の和:1054

約数の個数: 36

約数和(自身を含む): 42894040

約数和(自身を除く): 20995932

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 289, 323, 578, 646, 997, 1156, 1292, 1994, 3988, 5491, 10982, 16949, 18943, 21964, 33898, 37886, 67796, 75772, 288133, 322031, 576266, 644062, 1152532, 1288124, 5474527, 10949054, 21898108]

約数ペア:

[(1, 21898108), (2, 10949054), (4, 5474527), (17, 1288124), (19, 1152532), (34, 644062), (38, 576266), (68, 322031), (76, 288133), (289, 75772), (323, 67796), (578, 37886), (646, 33898), (997, 21964), (1156, 18943), (1292, 16949), (1994, 10982), (3988, 5491)]