19893085

素因数分解:

$5^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1$

素因数の和:512

約数の個数: 16

約数和(自身を含む): 24353136

約数和(自身を除く): 4460051

約数列:

[1, 5, 113, 137, 257, 565, 685, 1285, 15481, 29041, 35209, 77405, 145205, 176045, 3978617, 19893085]

約数ペア:

[(1, 19893085), (5, 3978617), (113, 176045), (137, 145205), (257, 77405), (565, 35209), (685, 29041), (1285, 15481)]