15129808

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{21991}}^1$

素因数の和:22042

約数の個数: 20

約数和(自身を含む): 29997088

約数和(自身を除く): 14867280

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 21991, 43982, 87964, 175928, 351856, 945613, 1891226, 3782452, 7564904, 15129808]

約数ペア:

[(1, 15129808), (2, 7564904), (4, 3782452), (8, 1891226), (16, 945613), (43, 351856), (86, 175928), (172, 87964), (344, 43982), (688, 21991)]