21159270

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{67}}^1$

素因数の和:131

約数の個数: 144

約数和(自身を含む): 63488880

約数和(自身を除く): 42329610

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 29, 30, 33, 45, 55, 58, 66, 67, 87, 90, 99, 110, 121, 134, 145, 165, 174, 198, 201, 242, 261, 290, 319, 330, 335, 363, 402, 435, 495, 522, 603, 605, 638, 670, 726, 737, 870, 957, 990, 1005, 1089, 1206, 1210, 1305, 1474, 1595, 1815, 1914, 1943, 2010, 2178, 2211, 2610, 2871, 3015, 3190, 3509, 3630, 3685, 3886, 4422, 4785, 5445, 5742, 5829, 6030, 6633, 7018, 7370, 8107, 9570, 9715, 10527, 10890, 11055, 11658, 13266, 14355, 16214, 17487, 17545, 19430, 21054, 21373, 22110, 24321, 28710, 29145, 31581, 33165, 34974, 35090, 40535, 42746, 48642, 52635, 58290, 63162, 64119, 66330, 72963, 81070, 87435, 105270, 106865, 121605, 128238, 145926, 157905, 174870, 192357, 213730, 235103, 243210, 315810, 320595, 364815, 384714, 470206, 641190, 705309, 729630, 961785, 1175515, 1410618, 1923570, 2115927, 2351030, 3526545, 4231854, 7053090, 10579635, 21159270]

約数ペア:

[(1, 21159270), (2, 10579635), (3, 7053090), (5, 4231854), (6, 3526545), (9, 2351030), (10, 2115927), (11, 1923570), (15, 1410618), (18, 1175515), (22, 961785), (29, 729630), (30, 705309), (33, 641190), (45, 470206), (55, 384714), (58, 364815), (66, 320595), (67, 315810), (87, 243210), (90, 235103), (99, 213730), (110, 192357), (121, 174870), (134, 157905), (145, 145926), (165, 128238), (174, 121605), (198, 106865), (201, 105270), (242, 87435), (261, 81070), (290, 72963), (319, 66330), (330, 64119), (335, 63162), (363, 58290), (402, 52635), (435, 48642), (495, 42746), (522, 40535), (603, 35090), (605, 34974), (638, 33165), (670, 31581), (726, 29145), (737, 28710), (870, 24321), (957, 22110), (990, 21373), (1005, 21054), (1089, 19430), (1206, 17545), (1210, 17487), (1305, 16214), (1474, 14355), (1595, 13266), (1815, 11658), (1914, 11055), (1943, 10890), (2010, 10527), (2178, 9715), (2211, 9570), (2610, 8107), (2871, 7370), (3015, 7018), (3190, 6633), (3509, 6030), (3630, 5829), (3685, 5742), (3886, 5445), (4422, 4785)]