21187683

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{71339}}^1$

素因数の和:71359

約数の個数: 16

約数和(自身を含む): 34243200

約数和(自身を除く): 13055517

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 71339, 214017, 642051, 784729, 1926153, 2354187, 7062561, 21187683]

約数ペア:

[(1, 21187683), (3, 7062561), (9, 2354187), (11, 1926153), (27, 784729), (33, 642051), (99, 214017), (297, 71339)]