647236

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:171

約数の個数: 24

約数和(自身を含む): 1197504

約数和(自身を除く): 550268

約数列:

[1, 2, 4, 43, 53, 71, 86, 106, 142, 172, 212, 284, 2279, 3053, 3763, 4558, 6106, 7526, 9116, 12212, 15052, 161809, 323618, 647236]

約数ペア:

[(1, 647236), (2, 323618), (4, 161809), (43, 15052), (53, 12212), (71, 9116), (86, 7526), (106, 6106), (142, 4558), (172, 3763), (212, 3053), (284, 2279)]