21271950

素因数分解:

$2^1\times 3^3\times 5^2\times 7^1\times {\mathrm{2251}}^1$

素因数の和:2279

約数の個数: 96

約数和(自身を含む): 67019520

約数和(自身を除く): 45747570

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 27, 30, 35, 42, 45, 50, 54, 63, 70, 75, 90, 105, 126, 135, 150, 175, 189, 210, 225, 270, 315, 350, 378, 450, 525, 630, 675, 945, 1050, 1350, 1575, 1890, 2251, 3150, 4502, 4725, 6753, 9450, 11255, 13506, 15757, 20259, 22510, 31514, 33765, 40518, 47271, 56275, 60777, 67530, 78785, 94542, 101295, 112550, 121554, 141813, 157570, 168825, 202590, 236355, 283626, 303885, 337650, 393925, 425439, 472710, 506475, 607770, 709065, 787850, 850878, 1012950, 1181775, 1418130, 1519425, 2127195, 2363550, 3038850, 3545325, 4254390, 7090650, 10635975, 21271950]

約数ペア:

[(1, 21271950), (2, 10635975), (3, 7090650), (5, 4254390), (6, 3545325), (7, 3038850), (9, 2363550), (10, 2127195), (14, 1519425), (15, 1418130), (18, 1181775), (21, 1012950), (25, 850878), (27, 787850), (30, 709065), (35, 607770), (42, 506475), (45, 472710), (50, 425439), (54, 393925), (63, 337650), (70, 303885), (75, 283626), (90, 236355), (105, 202590), (126, 168825), (135, 157570), (150, 141813), (175, 121554), (189, 112550), (210, 101295), (225, 94542), (270, 78785), (315, 67530), (350, 60777), (378, 56275), (450, 47271), (525, 40518), (630, 33765), (675, 31514), (945, 22510), (1050, 20259), (1350, 15757), (1575, 13506), (1890, 11255), (2251, 9450), (3150, 6753), (4502, 4725)]