18785457

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{601}}^1$

素因数の和:781

約数の個数: 24

約数和(自身を含む): 28549248

約数和(自身を除く): 9763791

約数列:

[1, 3, 9, 23, 69, 151, 207, 453, 601, 1359, 1803, 3473, 5409, 10419, 13823, 31257, 41469, 90751, 124407, 272253, 816759, 2087273, 6261819, 18785457]

約数ペア:

[(1, 18785457), (3, 6261819), (9, 2087273), (23, 816759), (69, 272253), (151, 124407), (207, 90751), (453, 41469), (601, 31257), (1359, 13823), (1803, 10419), (3473, 5409)]