21291298

素因数分解:

$2^1\times 7^1\times {\mathrm{1153}}^1\times {\mathrm{1319}}^1$

素因数の和:2481

約数の個数: 16

約数和(自身を含む): 36558720

約数和(自身を除く): 15267422

約数列:

[1, 2, 7, 14, 1153, 1319, 2306, 2638, 8071, 9233, 16142, 18466, 1520807, 3041614, 10645649, 21291298]

約数ペア:

[(1, 21291298), (2, 10645649), (7, 3041614), (14, 1520807), (1153, 18466), (1319, 16142), (2306, 9233), (2638, 8071)]