18803728

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{181}}^1$

素因数の和:383

約数の個数: 40

約数和(自身を含む): 37733696

約数和(自身を除く): 18929968

約数列:

[1, 2, 4, 8, 16, 43, 86, 151, 172, 181, 302, 344, 362, 604, 688, 724, 1208, 1448, 2416, 2896, 6493, 7783, 12986, 15566, 25972, 27331, 31132, 51944, 54662, 62264, 103888, 109324, 124528, 218648, 437296, 1175233, 2350466, 4700932, 9401864, 18803728]

約数ペア:

[(1, 18803728), (2, 9401864), (4, 4700932), (8, 2350466), (16, 1175233), (43, 437296), (86, 218648), (151, 124528), (172, 109324), (181, 103888), (302, 62264), (344, 54662), (362, 51944), (604, 31132), (688, 27331), (724, 25972), (1208, 15566), (1448, 12986), (2416, 7783), (2896, 6493)]