651536

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{947}}^1$

素因数の和:998

約数の個数: 20

約数和(自身を含む): 1293072

約数和(自身を除く): 641536

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 947, 1894, 3788, 7576, 15152, 40721, 81442, 162884, 325768, 651536]

約数ペア:

[(1, 651536), (2, 325768), (4, 162884), (8, 81442), (16, 40721), (43, 15152), (86, 7576), (172, 3788), (344, 1894), (688, 947)]