28135005

素因数分解:

$3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{13691}}^1$

素因数の和:13836

約数の個数: 16

約数和(自身を含む): 45347904

約数和(自身を除く): 17212899

約数列:

[1, 3, 5, 15, 137, 411, 685, 2055, 13691, 41073, 68455, 205365, 1875667, 5627001, 9378335, 28135005]

約数ペア:

[(1, 28135005), (3, 9378335), (5, 5627001), (15, 1875667), (137, 205365), (411, 68455), (685, 41073), (2055, 13691)]