19311448

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{337}}^1$

素因数の和:404

約数の個数: 64

約数和(自身を含む): 42588000

約数和(自身を除く): 23276552

約数列:

[1, 2, 4, 8, 13, 19, 26, 29, 38, 52, 58, 76, 104, 116, 152, 232, 247, 337, 377, 494, 551, 674, 754, 988, 1102, 1348, 1508, 1976, 2204, 2696, 3016, 4381, 4408, 6403, 7163, 8762, 9773, 12806, 14326, 17524, 19546, 25612, 28652, 35048, 39092, 51224, 57304, 78184, 83239, 127049, 166478, 185687, 254098, 332956, 371374, 508196, 665912, 742748, 1016392, 1485496, 2413931, 4827862, 9655724, 19311448]

約数ペア:

[(1, 19311448), (2, 9655724), (4, 4827862), (8, 2413931), (13, 1485496), (19, 1016392), (26, 742748), (29, 665912), (38, 508196), (52, 371374), (58, 332956), (76, 254098), (104, 185687), (116, 166478), (152, 127049), (232, 83239), (247, 78184), (337, 57304), (377, 51224), (494, 39092), (551, 35048), (674, 28652), (754, 25612), (988, 19546), (1102, 17524), (1348, 14326), (1508, 12806), (1976, 9773), (2204, 8762), (2696, 7163), (3016, 6403), (4381, 4408)]