21942169

素因数分解:

${\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{251}}^1$

素因数の和:420

約数の個数: 16

約数和(自身を含む): 23950080

約数和(自身を除く): 2007911

約数列:

[1, 19, 43, 107, 251, 817, 2033, 4601, 4769, 10793, 26857, 87419, 205067, 510283, 1154851, 21942169]

約数ペア:

[(1, 21942169), (19, 1154851), (43, 510283), (107, 205067), (251, 87419), (817, 26857), (2033, 10793), (4601, 4769)]