21780006

素因数分解:

$2^1\times 3^1\times {\mathrm{1531}}^1\times {\mathrm{2371}}^1$

素因数の和:3907

約数の個数: 16

約数和(自身を含む): 43606848

約数和(自身を除く): 21826842

約数列:

[1, 2, 3, 6, 1531, 2371, 3062, 4593, 4742, 7113, 9186, 14226, 3630001, 7260002, 10890003, 21780006]

約数ペア:

[(1, 21780006), (2, 10890003), (3, 7260002), (6, 3630001), (1531, 14226), (2371, 9186), (3062, 7113), (4593, 4742)]