19745636

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1$

素因数の和:117

約数の個数: 72

約数和(自身を含む): 41260800

約数和(自身を除く): 21515164

約数列:

[1, 2, 4, 17, 19, 29, 31, 34, 38, 58, 62, 68, 76, 116, 124, 289, 323, 493, 527, 551, 578, 589, 646, 899, 986, 1054, 1102, 1156, 1178, 1292, 1798, 1972, 2108, 2204, 2356, 3596, 5491, 8381, 8959, 9367, 10013, 10982, 15283, 16762, 17081, 17918, 18734, 20026, 21964, 30566, 33524, 34162, 35836, 37468, 40052, 61132, 68324, 159239, 170221, 259811, 290377, 318478, 340442, 519622, 580754, 636956, 680884, 1039244, 1161508, 4936409, 9872818, 19745636]

約数ペア:

[(1, 19745636), (2, 9872818), (4, 4936409), (17, 1161508), (19, 1039244), (29, 680884), (31, 636956), (34, 580754), (38, 519622), (58, 340442), (62, 318478), (68, 290377), (76, 259811), (116, 170221), (124, 159239), (289, 68324), (323, 61132), (493, 40052), (527, 37468), (551, 35836), (578, 34162), (589, 33524), (646, 30566), (899, 21964), (986, 20026), (1054, 18734), (1102, 17918), (1156, 17081), (1178, 16762), (1292, 15283), (1798, 10982), (1972, 10013), (2108, 9367), (2204, 8959), (2356, 8381), (3596, 5491)]