21000427950

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{617}}^1\times {\mathrm{2203}}^1$

素因数の和:2938

約数の個数: 96

約数和(自身を含む): 52695841536

約数和(自身を除く): 31695413586

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 103, 150, 206, 309, 515, 617, 618, 1030, 1234, 1545, 1851, 2203, 2575, 3085, 3090, 3702, 4406, 5150, 6170, 6609, 7725, 9255, 11015, 13218, 15425, 15450, 18510, 22030, 30850, 33045, 46275, 55075, 63551, 66090, 92550, 110150, 127102, 165225, 190653, 226909, 317755, 330450, 381306, 453818, 635510, 680727, 953265, 1134545, 1359251, 1361454, 1588775, 1906530, 2269090, 2718502, 3177550, 3403635, 4077753, 4766325, 5672725, 6796255, 6807270, 8155506, 9532650, 11345450, 13592510, 17018175, 20388765, 33981275, 34036350, 40777530, 67962550, 101943825, 140002853, 203887650, 280005706, 420008559, 700014265, 840017118, 1400028530, 2100042795, 3500071325, 4200085590, 7000142650, 10500213975, 21000427950]

約数ペア:

[(1, 21000427950), (2, 10500213975), (3, 7000142650), (5, 4200085590), (6, 3500071325), (10, 2100042795), (15, 1400028530), (25, 840017118), (30, 700014265), (50, 420008559), (75, 280005706), (103, 203887650), (150, 140002853), (206, 101943825), (309, 67962550), (515, 40777530), (617, 34036350), (618, 33981275), (1030, 20388765), (1234, 17018175), (1545, 13592510), (1851, 11345450), (2203, 9532650), (2575, 8155506), (3085, 6807270), (3090, 6796255), (3702, 5672725), (4406, 4766325), (5150, 4077753), (6170, 3403635), (6609, 3177550), (7725, 2718502), (9255, 2269090), (11015, 1906530), (13218, 1588775), (15425, 1361454), (15450, 1359251), (18510, 1134545), (22030, 953265), (30850, 680727), (33045, 635510), (46275, 453818), (55075, 381306), (63551, 330450), (66090, 317755), (92550, 226909), (110150, 190653), (127102, 165225)]