18717147

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{4759}}^1$

素因数の和:4807

約数の個数: 24

約数和(自身を含む): 29702400

約数和(自身を除く): 10985253

約数列:

[1, 3, 9, 19, 23, 57, 69, 171, 207, 437, 1311, 3933, 4759, 14277, 42831, 90421, 109457, 271263, 328371, 813789, 985113, 2079683, 6239049, 18717147]

約数ペア:

[(1, 18717147), (3, 6239049), (9, 2079683), (19, 985113), (23, 813789), (57, 328371), (69, 271263), (171, 109457), (207, 90421), (437, 42831), (1311, 14277), (3933, 4759)]