19439739

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{17851}}^1$

素因数の和:17879

約数の個数: 18

約数和(自身を含む): 30866108

約数和(自身を除く): 11426369

約数列:

[1, 3, 9, 11, 33, 99, 121, 363, 1089, 17851, 53553, 160659, 196361, 589083, 1767249, 2159971, 6479913, 19439739]

約数ペア:

[(1, 19439739), (3, 6479913), (9, 2159971), (11, 1767249), (33, 589083), (99, 196361), (121, 160659), (363, 53553), (1089, 17851)]