20898309

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{11827}}^1$

素因数の和:11880

約数の個数: 16

約数和(自身を含む): 30279680

約数和(自身を除く): 9381371

約数列:

[1, 3, 19, 31, 57, 93, 589, 1767, 11827, 35481, 224713, 366637, 674139, 1099911, 6966103, 20898309]

約数ペア:

[(1, 20898309), (3, 6966103), (19, 1099911), (31, 674139), (57, 366637), (93, 224713), (589, 35481), (1767, 11827)]