21038757

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{4447}}^1$

素因数の和:4552

約数の個数: 16

約数和(自身を含む): 29890560

約数和(自身を除く): 8851803

約数列:

[1, 3, 19, 57, 83, 249, 1577, 4447, 4731, 13341, 84493, 253479, 369101, 1107303, 7012919, 21038757]

約数ペア:

[(1, 21038757), (3, 7012919), (19, 1107303), (57, 369101), (83, 253479), (249, 84493), (1577, 13341), (4447, 4731)]