21834477

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:115

約数の個数: 96

約数和(自身を含む): 42681600

約数和(自身を除く): 20847123

約数列:

[1, 3, 7, 9, 17, 19, 21, 29, 37, 51, 57, 63, 87, 111, 119, 133, 153, 171, 203, 259, 261, 323, 333, 357, 399, 493, 551, 609, 629, 703, 777, 969, 1071, 1073, 1197, 1479, 1653, 1827, 1887, 2109, 2261, 2331, 2907, 3219, 3451, 3857, 4403, 4437, 4921, 4959, 5661, 6327, 6783, 7511, 9367, 9657, 10353, 11571, 11951, 13209, 14763, 18241, 20349, 20387, 22533, 28101, 31059, 34713, 35853, 39627, 44289, 54723, 61161, 65569, 67599, 83657, 84303, 107559, 127687, 142709, 164169, 183483, 196707, 250971, 346579, 383061, 428127, 590121, 752913, 1039737, 1149183, 1284381, 2426053, 3119211, 7278159, 21834477]

約数ペア:

[(1, 21834477), (3, 7278159), (7, 3119211), (9, 2426053), (17, 1284381), (19, 1149183), (21, 1039737), (29, 752913), (37, 590121), (51, 428127), (57, 383061), (63, 346579), (87, 250971), (111, 196707), (119, 183483), (133, 164169), (153, 142709), (171, 127687), (203, 107559), (259, 84303), (261, 83657), (323, 67599), (333, 65569), (357, 61161), (399, 54723), (493, 44289), (551, 39627), (609, 35853), (629, 34713), (703, 31059), (777, 28101), (969, 22533), (1071, 20387), (1073, 20349), (1197, 18241), (1479, 14763), (1653, 13209), (1827, 11951), (1887, 11571), (2109, 10353), (2261, 9657), (2331, 9367), (2907, 7511), (3219, 6783), (3451, 6327), (3857, 5661), (4403, 4959), (4437, 4921)]