21780546

素因数分解:

$2^1\times 3^1\times {\mathrm{439}}^1\times {\mathrm{8269}}^1$

素因数の和:8713

約数の個数: 16

約数和(自身を含む): 43665600

約数和(自身を除く): 21885054

約数列:

[1, 2, 3, 6, 439, 878, 1317, 2634, 8269, 16538, 24807, 49614, 3630091, 7260182, 10890273, 21780546]

約数ペア:

[(1, 21780546), (2, 10890273), (3, 7260182), (6, 3630091), (439, 49614), (878, 24807), (1317, 16538), (2634, 8269)]