21861145

素因数分解:

$5^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1\times {\mathrm{199}}^1$

素因数の和:504

約数の個数: 16

約数和(自身を含む): 26726400

約数和(自身を除く): 4865255

約数列:

[1, 5, 127, 173, 199, 635, 865, 995, 21971, 25273, 34427, 109855, 126365, 172135, 4372229, 21861145]

約数ペア:

[(1, 21861145), (5, 4372229), (127, 172135), (173, 126365), (199, 109855), (635, 34427), (865, 25273), (995, 21971)]