19842196

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{647}}^1$

素因数の和:720

約数の個数: 48

約数和(自身を含む): 41150592

約数和(自身を除く): 21308396

約数列:

[1, 2, 4, 11, 17, 22, 34, 41, 44, 68, 82, 164, 187, 374, 451, 647, 697, 748, 902, 1294, 1394, 1804, 2588, 2788, 7117, 7667, 10999, 14234, 15334, 21998, 26527, 28468, 30668, 43996, 53054, 106108, 120989, 241978, 291797, 450959, 483956, 583594, 901918, 1167188, 1803836, 4960549, 9921098, 19842196]

約数ペア:

[(1, 19842196), (2, 9921098), (4, 4960549), (11, 1803836), (17, 1167188), (22, 901918), (34, 583594), (41, 483956), (44, 450959), (68, 291797), (82, 241978), (164, 120989), (187, 106108), (374, 53054), (451, 43996), (647, 30668), (697, 28468), (748, 26527), (902, 21998), (1294, 15334), (1394, 14234), (1804, 10999), (2588, 7667), (2788, 7117)]