28581891

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{4049}}^1$

素因数の和:4246

約数の個数: 16

約数和(自身を含む): 41277600

約数和(自身を除く): 12695709

約数列:

[1, 3, 13, 39, 181, 543, 2353, 4049, 7059, 12147, 52637, 157911, 732869, 2198607, 9527297, 28581891]

約数ペア:

[(1, 28581891), (3, 9527297), (13, 2198607), (39, 732869), (181, 157911), (543, 52637), (2353, 12147), (4049, 7059)]