21185691

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{479}}^1\times {\mathrm{641}}^1$

素因数の和:1146

約数の個数: 16

約数和(自身を含む): 29583360

約数和(自身を除く): 8397669

約数列:

[1, 3, 23, 69, 479, 641, 1437, 1923, 11017, 14743, 33051, 44229, 307039, 921117, 7061897, 21185691]

約数ペア:

[(1, 21185691), (3, 7061897), (23, 921117), (69, 307039), (479, 44229), (641, 33051), (1437, 14743), (1923, 11017)]