21164490

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1$

素因数の和:118

約数の個数: 160

約数和(自身を含む): 63510480

約数和(自身を除く): 42345990

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 29, 30, 34, 45, 51, 53, 54, 58, 81, 85, 87, 90, 102, 106, 135, 145, 153, 159, 162, 170, 174, 255, 261, 265, 270, 290, 306, 318, 405, 435, 459, 477, 493, 510, 522, 530, 765, 783, 795, 810, 870, 901, 918, 954, 986, 1305, 1377, 1431, 1479, 1530, 1537, 1566, 1590, 1802, 2295, 2349, 2385, 2465, 2610, 2703, 2754, 2862, 2958, 3074, 3915, 4293, 4437, 4505, 4590, 4611, 4698, 4770, 4930, 5406, 6885, 7155, 7395, 7685, 7830, 8109, 8586, 8874, 9010, 9222, 11745, 13311, 13515, 13770, 13833, 14310, 14790, 15370, 16218, 21465, 22185, 23055, 23490, 24327, 26129, 26622, 27030, 27666, 39933, 40545, 41499, 42930, 44370, 46110, 48654, 52258, 66555, 69165, 72981, 78387, 79866, 81090, 82998, 121635, 124497, 130645, 133110, 138330, 145962, 156774, 199665, 207495, 235161, 243270, 248994, 261290, 364905, 391935, 399330, 414990, 470322, 622485, 705483, 729810, 783870, 1175805, 1244970, 1410966, 2116449, 2351610, 3527415, 4232898, 7054830, 10582245, 21164490]

約数ペア:

[(1, 21164490), (2, 10582245), (3, 7054830), (5, 4232898), (6, 3527415), (9, 2351610), (10, 2116449), (15, 1410966), (17, 1244970), (18, 1175805), (27, 783870), (29, 729810), (30, 705483), (34, 622485), (45, 470322), (51, 414990), (53, 399330), (54, 391935), (58, 364905), (81, 261290), (85, 248994), (87, 243270), (90, 235161), (102, 207495), (106, 199665), (135, 156774), (145, 145962), (153, 138330), (159, 133110), (162, 130645), (170, 124497), (174, 121635), (255, 82998), (261, 81090), (265, 79866), (270, 78387), (290, 72981), (306, 69165), (318, 66555), (405, 52258), (435, 48654), (459, 46110), (477, 44370), (493, 42930), (510, 41499), (522, 40545), (530, 39933), (765, 27666), (783, 27030), (795, 26622), (810, 26129), (870, 24327), (901, 23490), (918, 23055), (954, 22185), (986, 21465), (1305, 16218), (1377, 15370), (1431, 14790), (1479, 14310), (1530, 13833), (1537, 13770), (1566, 13515), (1590, 13311), (1802, 11745), (2295, 9222), (2349, 9010), (2385, 8874), (2465, 8586), (2610, 8109), (2703, 7830), (2754, 7685), (2862, 7395), (2958, 7155), (3074, 6885), (3915, 5406), (4293, 4930), (4437, 4770), (4505, 4698), (4590, 4611)]