990864721

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{63391}}^1$

素因数の和:63445

約数の個数: 24

約数和(自身を含む): 1300803840

約数和(自身を除く): 309939119

約数列:

[1, 7, 11, 29, 49, 77, 203, 319, 539, 1421, 2233, 15631, 63391, 443737, 697301, 1838339, 3106159, 4881107, 12868373, 20221729, 34167749, 90078611, 141552103, 990864721]

約数ペア:

[(1, 990864721), (7, 141552103), (11, 90078611), (29, 34167749), (49, 20221729), (77, 12868373), (203, 4881107), (319, 3106159), (539, 1838339), (1421, 697301), (2233, 443737), (15631, 63391)]