187400889

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{123209}}^1$

素因数の和:123241

約数の個数: 18

約数和(自身を含む): 293116590

約数和(自身を除く): 105715701

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 123209, 369627, 1108881, 1601717, 4805151, 14415453, 20822321, 62466963, 187400889]

約数ペア:

[(1, 187400889), (3, 62466963), (9, 20822321), (13, 14415453), (39, 4805151), (117, 1601717), (169, 1108881), (507, 369627), (1521, 123209)]