20516447

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{22037}}^1$

素因数の和:22070

約数の個数: 12

約数和(自身を含む): 25123320

約数和(自身を除く): 4606873

約数列:

[1, 7, 19, 49, 133, 931, 22037, 154259, 418703, 1079813, 2930921, 20516447]

約数ペア:

[(1, 20516447), (7, 2930921), (19, 1079813), (49, 418703), (133, 154259), (931, 22037)]