20805127

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{359}}^1\times {\mathrm{487}}^1$

素因数の和:870

約数の個数: 16

約数和(自身を含む): 25297920

約数和(自身を除く): 4492793

約数列:

[1, 7, 17, 119, 359, 487, 2513, 3409, 6103, 8279, 42721, 57953, 174833, 1223831, 2972161, 20805127]

約数ペア:

[(1, 20805127), (7, 2972161), (17, 1223831), (119, 174833), (359, 57953), (487, 42721), (2513, 8279), (3409, 6103)]