12161919

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1$

素因数の和:220

約数の個数: 64

約数和(自身を含む): 22671360

約数和(自身を除く): 10509441

約数列:

[1, 3, 7, 11, 17, 19, 21, 33, 51, 57, 77, 119, 133, 163, 187, 209, 231, 323, 357, 399, 489, 561, 627, 969, 1141, 1309, 1463, 1793, 2261, 2771, 3097, 3423, 3553, 3927, 4389, 5379, 6783, 8313, 9291, 10659, 12551, 19397, 21679, 24871, 30481, 34067, 37653, 52649, 58191, 65037, 74613, 91443, 102201, 157947, 213367, 238469, 368543, 579139, 640101, 715407, 1105629, 1737417, 4053973, 12161919]

約数ペア:

[(1, 12161919), (3, 4053973), (7, 1737417), (11, 1105629), (17, 715407), (19, 640101), (21, 579139), (33, 368543), (51, 238469), (57, 213367), (77, 157947), (119, 102201), (133, 91443), (163, 74613), (187, 65037), (209, 58191), (231, 52649), (323, 37653), (357, 34067), (399, 30481), (489, 24871), (561, 21679), (627, 19397), (969, 12551), (1141, 10659), (1309, 9291), (1463, 8313), (1793, 6783), (2261, 5379), (2771, 4389), (3097, 3927), (3423, 3553)]