28162809

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{9397}}^1$

素因数の和:9446

約数の個数: 20

約数和(自身を含む): 43212004

約数和(自身を除く): 15049195

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 2997, 9397, 28191, 84573, 253719, 347689, 761157, 1043067, 3129201, 9387603, 28162809]

約数ペア:

[(1, 28162809), (3, 9387603), (9, 3129201), (27, 1043067), (37, 761157), (81, 347689), (111, 253719), (333, 84573), (999, 28191), (2997, 9397)]