19698991

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{461}}^1$

素因数の和:666

約数の個数: 16

約数和(自身を含む): 22508640

約数和(自身を除く): 2809649

約数列:

[1, 13, 19, 173, 247, 461, 2249, 3287, 5993, 8759, 42731, 79753, 113867, 1036789, 1515307, 19698991]

約数ペア:

[(1, 19698991), (13, 1515307), (19, 1036789), (173, 113867), (247, 79753), (461, 42731), (2249, 8759), (3287, 5993)]