19119309

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{4229}}^1$

素因数の和:4380

約数の個数: 16

約数和(自身を含む): 28019520

約数和(自身を除く): 8900211

約数列:

[1, 3, 11, 33, 137, 411, 1507, 4229, 4521, 12687, 46519, 139557, 579373, 1738119, 6373103, 19119309]

約数ペア:

[(1, 19119309), (3, 6373103), (11, 1738119), (33, 579373), (137, 139557), (411, 46519), (1507, 12687), (4229, 4521)]