21264618

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{82421}}^1$

素因数の和:82469

約数の個数: 16

約数和(自身を含む): 43518816

約数和(自身を除く): 22254198

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 82421, 164842, 247263, 494526, 3544103, 7088206, 10632309, 21264618]

約数ペア:

[(1, 21264618), (2, 10632309), (3, 7088206), (6, 3544103), (43, 494526), (86, 247263), (129, 164842), (258, 82421)]