21455115

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{11821}}^1$

素因数の和:11851

約数の個数: 24

約数和(自身を含む): 37735824

約数和(自身を除く): 16280709

約数列:

[1, 3, 5, 11, 15, 33, 55, 121, 165, 363, 605, 1815, 11821, 35463, 59105, 130031, 177315, 390093, 650155, 1430341, 1950465, 4291023, 7151705, 21455115]

約数ペア:

[(1, 21455115), (3, 7151705), (5, 4291023), (11, 1950465), (15, 1430341), (33, 650155), (55, 390093), (121, 177315), (165, 130031), (363, 59105), (605, 35463), (1815, 11821)]