15890721

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{68791}}^1$

素因数の和:68812

約数の個数: 16

約数和(自身を含む): 26416128

約数和(自身を除く): 10525407

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 68791, 206373, 481537, 756701, 1444611, 2270103, 5296907, 15890721]

約数ペア:

[(1, 15890721), (3, 5296907), (7, 2270103), (11, 1444611), (21, 756701), (33, 481537), (77, 206373), (231, 68791)]