18768969

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{397}}^1$

素因数の和:526

約数の個数: 32

約数和(自身を含む): 29802240

約数和(自身を除く): 11033271

約数列:

[1, 3, 9, 17, 27, 51, 103, 153, 309, 397, 459, 927, 1191, 1751, 2781, 3573, 5253, 6749, 10719, 15759, 20247, 40891, 47277, 60741, 122673, 182223, 368019, 695147, 1104057, 2085441, 6256323, 18768969]

約数ペア:

[(1, 18768969), (3, 6256323), (9, 2085441), (17, 1104057), (27, 695147), (51, 368019), (103, 182223), (153, 122673), (309, 60741), (397, 47277), (459, 40891), (927, 20247), (1191, 15759), (1751, 10719), (2781, 6749), (3573, 5253)]