28840131

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{9623}}^1$

素因数の和:9672

約数の個数: 20

約数和(自身を含む): 44251152

約数和(自身を除く): 15411021

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 2997, 9623, 28869, 86607, 259821, 356051, 779463, 1068153, 3204459, 9613377, 28840131]

約数ペア:

[(1, 28840131), (3, 9613377), (9, 3204459), (27, 1068153), (37, 779463), (81, 356051), (111, 259821), (333, 86607), (999, 28869), (2997, 9623)]