19788291

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1193}}^1$

素因数の和:1315

約数の個数: 24

約数和(自身を含む): 30423120

約数和(自身を除く): 10634829

約数列:

[1, 3, 9, 19, 57, 97, 171, 291, 873, 1193, 1843, 3579, 5529, 10737, 16587, 22667, 68001, 115721, 204003, 347163, 1041489, 2198699, 6596097, 19788291]

約数ペア:

[(1, 19788291), (3, 6596097), (9, 2198699), (19, 1041489), (57, 347163), (97, 204003), (171, 115721), (291, 68001), (873, 22667), (1193, 16587), (1843, 10737), (3579, 5529)]