21541800

素因数分解:

$2^3\times 3^1\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1$

素因数の和:272

約数の個数: 192

約数和(自身を含む): 79994880

約数和(自身を除く): 58453080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 25, 28, 30, 35, 40, 42, 46, 50, 56, 60, 69, 70, 75, 84, 92, 100, 105, 115, 120, 138, 140, 150, 161, 168, 175, 184, 200, 210, 223, 230, 276, 280, 300, 322, 345, 350, 420, 446, 460, 483, 525, 552, 575, 600, 644, 669, 690, 700, 805, 840, 892, 920, 966, 1050, 1115, 1150, 1288, 1338, 1380, 1400, 1561, 1610, 1725, 1784, 1932, 2100, 2230, 2300, 2415, 2676, 2760, 3122, 3220, 3345, 3450, 3864, 4025, 4200, 4460, 4600, 4683, 4830, 5129, 5352, 5575, 6244, 6440, 6690, 6900, 7805, 8050, 8920, 9366, 9660, 10258, 11150, 12075, 12488, 13380, 13800, 15387, 15610, 16100, 16725, 18732, 19320, 20516, 22300, 23415, 24150, 25645, 26760, 30774, 31220, 32200, 33450, 35903, 37464, 39025, 41032, 44600, 46830, 48300, 51290, 61548, 62440, 66900, 71806, 76935, 78050, 93660, 96600, 102580, 107709, 117075, 123096, 128225, 133800, 143612, 153870, 156100, 179515, 187320, 205160, 215418, 234150, 256450, 287224, 307740, 312200, 359030, 384675, 430836, 468300, 512900, 538545, 615480, 718060, 769350, 861672, 897575, 936600, 1025800, 1077090, 1436120, 1538700, 1795150, 2154180, 2692725, 3077400, 3590300, 4308360, 5385450, 7180600, 10770900, 21541800]

約数ペア:

[(1, 21541800), (2, 10770900), (3, 7180600), (4, 5385450), (5, 4308360), (6, 3590300), (7, 3077400), (8, 2692725), (10, 2154180), (12, 1795150), (14, 1538700), (15, 1436120), (20, 1077090), (21, 1025800), (23, 936600), (24, 897575), (25, 861672), (28, 769350), (30, 718060), (35, 615480), (40, 538545), (42, 512900), (46, 468300), (50, 430836), (56, 384675), (60, 359030), (69, 312200), (70, 307740), (75, 287224), (84, 256450), (92, 234150), (100, 215418), (105, 205160), (115, 187320), (120, 179515), (138, 156100), (140, 153870), (150, 143612), (161, 133800), (168, 128225), (175, 123096), (184, 117075), (200, 107709), (210, 102580), (223, 96600), (230, 93660), (276, 78050), (280, 76935), (300, 71806), (322, 66900), (345, 62440), (350, 61548), (420, 51290), (446, 48300), (460, 46830), (483, 44600), (525, 41032), (552, 39025), (575, 37464), (600, 35903), (644, 33450), (669, 32200), (690, 31220), (700, 30774), (805, 26760), (840, 25645), (892, 24150), (920, 23415), (966, 22300), (1050, 20516), (1115, 19320), (1150, 18732), (1288, 16725), (1338, 16100), (1380, 15610), (1400, 15387), (1561, 13800), (1610, 13380), (1725, 12488), (1784, 12075), (1932, 11150), (2100, 10258), (2230, 9660), (2300, 9366), (2415, 8920), (2676, 8050), (2760, 7805), (3122, 6900), (3220, 6690), (3345, 6440), (3450, 6244), (3864, 5575), (4025, 5352), (4200, 5129), (4460, 4830), (4600, 4683)]