20843613

素因数分解:

$3^2\times 7^1\times {\mathrm{373}}^1\times {\mathrm{887}}^1$

素因数の和:1273

約数の個数: 24

約数和(自身を含む): 34539648

約数和(自身を除く): 13696035

約数列:

[1, 3, 7, 9, 21, 63, 373, 887, 1119, 2611, 2661, 3357, 6209, 7833, 7983, 18627, 23499, 55881, 330851, 992553, 2315957, 2977659, 6947871, 20843613]

約数ペア:

[(1, 20843613), (3, 6947871), (7, 2977659), (9, 2315957), (21, 992553), (63, 330851), (373, 55881), (887, 23499), (1119, 18627), (2611, 7983), (2661, 7833), (3357, 6209)]