638802

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{1543}}^1$

素因数の和:1574

約数の個数: 24

約数和(自身を含む): 1445184

約数和(自身を除く): 806382

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 207, 414, 1543, 3086, 4629, 9258, 13887, 27774, 35489, 70978, 106467, 212934, 319401, 638802]

約数ペア:

[(1, 638802), (2, 319401), (3, 212934), (6, 106467), (9, 70978), (18, 35489), (23, 27774), (46, 13887), (69, 9258), (138, 4629), (207, 3086), (414, 1543)]