16172865

素因数分解:

$3^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1$

素因数の和:75

約数の個数: 72

約数和(自身を含む): 31884840

約数和(自身を除く): 15711975

約数列:

[1, 3, 5, 9, 15, 17, 27, 29, 45, 51, 81, 85, 87, 135, 145, 153, 243, 255, 261, 405, 435, 459, 493, 729, 765, 783, 1215, 1305, 1377, 1479, 2187, 2295, 2349, 2465, 3645, 3915, 4131, 4437, 6561, 6885, 7047, 7395, 10935, 11745, 12393, 13311, 20655, 21141, 22185, 32805, 35235, 37179, 39933, 61965, 63423, 66555, 105705, 111537, 119799, 185895, 190269, 199665, 317115, 359397, 557685, 598995, 951345, 1078191, 1796985, 3234573, 5390955, 16172865]

約数ペア:

[(1, 16172865), (3, 5390955), (5, 3234573), (9, 1796985), (15, 1078191), (17, 951345), (27, 598995), (29, 557685), (45, 359397), (51, 317115), (81, 199665), (85, 190269), (87, 185895), (135, 119799), (145, 111537), (153, 105705), (243, 66555), (255, 63423), (261, 61965), (405, 39933), (435, 37179), (459, 35235), (493, 32805), (729, 22185), (765, 21141), (783, 20655), (1215, 13311), (1305, 12393), (1377, 11745), (1479, 10935), (2187, 7395), (2295, 7047), (2349, 6885), (2465, 6561), (3645, 4437), (3915, 4131)]