18781198

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{233}}^1\times {\mathrm{983}}^1$

素因数の和:1259

約数の個数: 16

約数和(自身を含む): 29012256

約数和(自身を除く): 10231058

約数列:

[1, 2, 41, 82, 233, 466, 983, 1966, 9553, 19106, 40303, 80606, 229039, 458078, 9390599, 18781198]

約数ペア:

[(1, 18781198), (2, 9390599), (41, 458078), (82, 229039), (233, 80606), (466, 40303), (983, 19106), (1966, 9553)]