18910143

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{7321}}^1$

素因数の和:7375

約数の個数: 24

約数和(自身を含む): 31982496

約数和(自身を除く): 13072353

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 7321, 21963, 51247, 65889, 153741, 300161, 461223, 900483, 2101127, 2701449, 6303381, 18910143]

約数ペア:

[(1, 18910143), (3, 6303381), (7, 2701449), (9, 2101127), (21, 900483), (41, 461223), (63, 300161), (123, 153741), (287, 65889), (369, 51247), (861, 21963), (2583, 7321)]