21738661

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1\times {\mathrm{619}}^1$

素因数の和:828

約数の個数: 16

約数和(自身を含む): 25891200

約数和(自身を除く): 4152539

約数列:

[1, 7, 29, 173, 203, 619, 1211, 4333, 5017, 17951, 35119, 107087, 125657, 749609, 3105523, 21738661]

約数ペア:

[(1, 21738661), (7, 3105523), (29, 749609), (173, 125657), (203, 107087), (619, 35119), (1211, 17951), (4333, 5017)]