18691756

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{997}}^1$

素因数の和:1153

約数の個数: 24

約数和(自身を含む): 33812240

約数和(自身を除く): 15120484

約数列:

[1, 2, 4, 43, 86, 109, 172, 218, 436, 997, 1994, 3988, 4687, 9374, 18748, 42871, 85742, 108673, 171484, 217346, 434692, 4672939, 9345878, 18691756]

約数ペア:

[(1, 18691756), (2, 9345878), (4, 4672939), (43, 434692), (86, 217346), (109, 171484), (172, 108673), (218, 85742), (436, 42871), (997, 18748), (1994, 9374), (3988, 4687)]