19926567

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{499}}^1$

素因数の和:557

約数の個数: 40

約数和(自身を含む): 32670000

約数和(自身を除く): 12743433

約数列:

[1, 3, 9, 17, 27, 29, 51, 81, 87, 153, 261, 459, 493, 499, 783, 1377, 1479, 1497, 2349, 4437, 4491, 8483, 13311, 13473, 14471, 25449, 39933, 40419, 43413, 76347, 130239, 229041, 246007, 390717, 687123, 738021, 1172151, 2214063, 6642189, 19926567]

約数ペア:

[(1, 19926567), (3, 6642189), (9, 2214063), (17, 1172151), (27, 738021), (29, 687123), (51, 390717), (81, 246007), (87, 229041), (153, 130239), (261, 76347), (459, 43413), (493, 40419), (499, 39933), (783, 25449), (1377, 14471), (1479, 13473), (1497, 13311), (2349, 8483), (4437, 4491)]