19897829

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{1693}}^1$

素因数の和:1796

約数の個数: 16

約数和(自身を含む): 24068352

約数和(自身を除く): 4170523

約数列:

[1, 7, 23, 73, 161, 511, 1679, 1693, 11753, 11851, 38939, 123589, 272573, 865123, 2842547, 19897829]

約数ペア:

[(1, 19897829), (7, 2842547), (23, 865123), (73, 272573), (161, 123589), (511, 38939), (1679, 11851), (1693, 11753)]