18164817

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:108

約数の個数: 80

約数和(自身を含む): 33105600

約数和(自身を除く): 14940783

約数列:

[1, 3, 9, 11, 19, 27, 29, 33, 37, 57, 81, 87, 99, 111, 171, 209, 261, 297, 319, 333, 407, 513, 551, 627, 703, 783, 891, 957, 999, 1073, 1221, 1539, 1653, 1881, 2109, 2349, 2871, 2997, 3219, 3663, 4959, 5643, 6061, 6327, 7733, 8613, 9657, 10989, 11803, 14877, 16929, 18183, 18981, 20387, 23199, 25839, 28971, 32967, 35409, 44631, 54549, 56943, 61161, 69597, 86913, 106227, 163647, 183483, 208791, 224257, 318681, 490941, 550449, 626373, 672771, 956043, 1651347, 2018313, 6054939, 18164817]

約数ペア:

[(1, 18164817), (3, 6054939), (9, 2018313), (11, 1651347), (19, 956043), (27, 672771), (29, 626373), (33, 550449), (37, 490941), (57, 318681), (81, 224257), (87, 208791), (99, 183483), (111, 163647), (171, 106227), (209, 86913), (261, 69597), (297, 61161), (319, 56943), (333, 54549), (407, 44631), (513, 35409), (551, 32967), (627, 28971), (703, 25839), (783, 23199), (891, 20387), (957, 18981), (999, 18183), (1073, 16929), (1221, 14877), (1539, 11803), (1653, 10989), (1881, 9657), (2109, 8613), (2349, 7733), (2871, 6327), (2997, 6061), (3219, 5643), (3663, 4959)]