28837328

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{138641}}^1$

素因数の和:138662

約数の個数: 20

約数和(自身を含む): 60170628

約数和(自身を除く): 31333300

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 138641, 277282, 554564, 1109128, 1802333, 2218256, 3604666, 7209332, 14418664, 28837328]

約数ペア:

[(1, 28837328), (2, 14418664), (4, 7209332), (8, 3604666), (13, 2218256), (16, 1802333), (26, 1109128), (52, 554564), (104, 277282), (208, 138641)]