21992464

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{105733}}^1$

素因数の和:105754

約数の個数: 20

約数和(自身を含む): 45888556

約数和(自身を除く): 23896092

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 105733, 211466, 422932, 845864, 1374529, 1691728, 2749058, 5498116, 10996232, 21992464]

約数ペア:

[(1, 21992464), (2, 10996232), (4, 5498116), (8, 2749058), (13, 1691728), (16, 1374529), (26, 845864), (52, 422932), (104, 211466), (208, 105733)]