18640199

素因数分解:

${\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:290

約数の個数: 16

約数和(自身を含む): 19921440

約数和(自身を除く): 1281241

約数列:

[1, 41, 43, 97, 109, 1763, 3977, 4171, 4469, 4687, 10573, 171011, 192167, 433493, 454639, 18640199]

約数ペア:

[(1, 18640199), (41, 454639), (43, 433493), (97, 192167), (109, 171011), (1763, 10573), (3977, 4687), (4171, 4469)]