18861661

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{10909}}^1$

素因数の和:10948

約数の個数: 16

約数和(自身を含む): 24438400

約数和(自身を除く): 5576739

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 10909, 76363, 141817, 207271, 992719, 1450897, 2694523, 18861661]

約数ペア:

[(1, 18861661), (7, 2694523), (13, 1450897), (19, 992719), (91, 207271), (133, 141817), (247, 76363), (1729, 10909)]