18673868

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{719}}^1$

素因数の和:917

約数の個数: 24

約数和(自身を含む): 33707520

約数和(自身を除く): 15033652

約数列:

[1, 2, 4, 43, 86, 151, 172, 302, 604, 719, 1438, 2876, 6493, 12986, 25972, 30917, 61834, 108569, 123668, 217138, 434276, 4668467, 9336934, 18673868]

約数ペア:

[(1, 18673868), (2, 9336934), (4, 4668467), (43, 434276), (86, 217138), (151, 123668), (172, 108569), (302, 61834), (604, 30917), (719, 25972), (1438, 12986), (2876, 6493)]