28204515

素因数分解:

$3^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15287}}^1$

素因数の和:15339

約数の個数: 24

約数和(自身を含む): 50083488

約数和(自身を除く): 21878973

約数列:

[1, 3, 5, 9, 15, 41, 45, 123, 205, 369, 615, 1845, 15287, 45861, 76435, 137583, 229305, 626767, 687915, 1880301, 3133835, 5640903, 9401505, 28204515]

約数ペア:

[(1, 28204515), (3, 9401505), (5, 5640903), (9, 3133835), (15, 1880301), (41, 687915), (45, 626767), (123, 229305), (205, 137583), (369, 76435), (615, 45861), (1845, 15287)]