21064050

素因数分解:

$2^1\times 3^4\times 5^2\times 7^1\times {\mathrm{743}}^1$

素因数の和:774

約数の個数: 120

約数和(自身を含む): 66977856

約数和(自身を除く): 45913806

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, 81, 90, 105, 126, 135, 150, 162, 175, 189, 210, 225, 270, 315, 350, 378, 405, 450, 525, 567, 630, 675, 743, 810, 945, 1050, 1134, 1350, 1486, 1575, 1890, 2025, 2229, 2835, 3150, 3715, 4050, 4458, 4725, 5201, 5670, 6687, 7430, 9450, 10402, 11145, 13374, 14175, 15603, 18575, 20061, 22290, 26005, 28350, 31206, 33435, 37150, 40122, 46809, 52010, 55725, 60183, 66870, 78015, 93618, 100305, 111450, 120366, 130025, 140427, 156030, 167175, 200610, 234045, 260050, 280854, 300915, 334350, 390075, 421281, 468090, 501525, 601830, 702135, 780150, 842562, 1003050, 1170225, 1404270, 1504575, 2106405, 2340450, 3009150, 3510675, 4212810, 7021350, 10532025, 21064050]

約数ペア:

[(1, 21064050), (2, 10532025), (3, 7021350), (5, 4212810), (6, 3510675), (7, 3009150), (9, 2340450), (10, 2106405), (14, 1504575), (15, 1404270), (18, 1170225), (21, 1003050), (25, 842562), (27, 780150), (30, 702135), (35, 601830), (42, 501525), (45, 468090), (50, 421281), (54, 390075), (63, 334350), (70, 300915), (75, 280854), (81, 260050), (90, 234045), (105, 200610), (126, 167175), (135, 156030), (150, 140427), (162, 130025), (175, 120366), (189, 111450), (210, 100305), (225, 93618), (270, 78015), (315, 66870), (350, 60183), (378, 55725), (405, 52010), (450, 46809), (525, 40122), (567, 37150), (630, 33435), (675, 31206), (743, 28350), (810, 26005), (945, 22290), (1050, 20061), (1134, 18575), (1350, 15603), (1486, 14175), (1575, 13374), (1890, 11145), (2025, 10402), (2229, 9450), (2835, 7430), (3150, 6687), (3715, 5670), (4050, 5201), (4458, 4725)]