21653038

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{661}}^1\times {\mathrm{1489}}^1$

素因数の和:2163

約数の個数: 16

約数和(自身を含む): 35509680

約数和(自身を除く): 13856642

約数列:

[1, 2, 11, 22, 661, 1322, 1489, 2978, 7271, 14542, 16379, 32758, 984229, 1968458, 10826519, 21653038]

約数ペア:

[(1, 21653038), (2, 10826519), (11, 1968458), (22, 984229), (661, 32758), (1322, 16379), (1489, 14542), (2978, 7271)]