18969260

素因数分解:

$2^2\times 5^1\times {\mathrm{443}}^1\times {\mathrm{2141}}^1$

素因数の和:2593

約数の個数: 24

約数和(自身を含む): 39944016

約数和(自身を除く): 20974756

約数列:

[1, 2, 4, 5, 10, 20, 443, 886, 1772, 2141, 2215, 4282, 4430, 8564, 8860, 10705, 21410, 42820, 948463, 1896926, 3793852, 4742315, 9484630, 18969260]

約数ペア:

[(1, 18969260), (2, 9484630), (4, 4742315), (5, 3793852), (10, 1896926), (20, 948463), (443, 42820), (886, 21410), (1772, 10705), (2141, 8860), (2215, 8564), (4282, 4430)]