21320831

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{22901}}^1$

素因数の和:22934

約数の個数: 12

約数和(自身を含む): 26108280

約数和(自身を除く): 4787449

約数列:

[1, 7, 19, 49, 133, 931, 22901, 160307, 435119, 1122149, 3045833, 21320831]

約数ペア:

[(1, 21320831), (7, 3045833), (19, 1122149), (49, 435119), (133, 160307), (931, 22901)]