18912141

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{433}}^1$

素因数の和:673

約数の個数: 24

約数和(自身を含む): 28706496

約数和(自身を除く): 9794355

約数列:

[1, 3, 9, 23, 69, 207, 211, 433, 633, 1299, 1899, 3897, 4853, 9959, 14559, 29877, 43677, 89631, 91363, 274089, 822267, 2101349, 6304047, 18912141]

約数ペア:

[(1, 18912141), (3, 6304047), (9, 2101349), (23, 822267), (69, 274089), (207, 91363), (211, 89631), (433, 43677), (633, 29877), (1299, 14559), (1899, 9959), (3897, 4853)]