21084918

素因数分解:

$2^1\times 3^1\times {\mathrm{419}}^1\times {\mathrm{8387}}^1$

素因数の和:8811

約数の個数: 16

約数和(自身を含む): 42275520

約数和(自身を除く): 21190602

約数列:

[1, 2, 3, 6, 419, 838, 1257, 2514, 8387, 16774, 25161, 50322, 3514153, 7028306, 10542459, 21084918]

約数ペア:

[(1, 21084918), (2, 10542459), (3, 7028306), (6, 3514153), (419, 50322), (838, 25161), (1257, 16774), (2514, 8387)]