21469772

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{2797}}^1$

素因数の和:2921

約数の個数: 24

約数和(自身を含む): 39955440

約数和(自身を除く): 18485668

約数列:

[1, 2, 4, 19, 38, 76, 101, 202, 404, 1919, 2797, 3838, 5594, 7676, 11188, 53143, 106286, 212572, 282497, 564994, 1129988, 5367443, 10734886, 21469772]

約数ペア:

[(1, 21469772), (2, 10734886), (4, 5367443), (19, 1129988), (38, 564994), (76, 282497), (101, 212572), (202, 106286), (404, 53143), (1919, 11188), (2797, 7676), (3838, 5594)]