21531254640

素因数分解:

$2^4\times 3^1\times 5^1\times 7^2\times {\mathrm{1830889}}^1$

素因数の和:1830919

約数の個数: 120

約数和(自身を含む): 77644383120

約数和(自身を除く): 56113128480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 98, 105, 112, 120, 140, 147, 168, 196, 210, 240, 245, 280, 294, 336, 392, 420, 490, 560, 588, 735, 784, 840, 980, 1176, 1470, 1680, 1960, 2352, 2940, 3920, 5880, 11760, 1830889, 3661778, 5492667, 7323556, 9154445, 10985334, 12816223, 14647112, 18308890, 21970668, 25632446, 27463335, 29294224, 36617780, 38448669, 43941336, 51264892, 54926670, 64081115, 73235560, 76897338, 87882672, 89713561, 102529784, 109853340, 128162230, 146471120, 153794676, 179427122, 192243345, 205059568, 219706680, 256324460, 269140683, 307589352, 358854244, 384486690, 439413360, 448567805, 512648920, 538281366, 615178704, 717708488, 768973380, 897135610, 1025297840, 1076562732, 1345703415, 1435416976, 1537946760, 1794271220, 2153125464, 2691406830, 3075893520, 3588542440, 4306250928, 5382813660, 7177084880, 10765627320, 21531254640]

約数ペア:

[(1, 21531254640), (2, 10765627320), (3, 7177084880), (4, 5382813660), (5, 4306250928), (6, 3588542440), (7, 3075893520), (8, 2691406830), (10, 2153125464), (12, 1794271220), (14, 1537946760), (15, 1435416976), (16, 1345703415), (20, 1076562732), (21, 1025297840), (24, 897135610), (28, 768973380), (30, 717708488), (35, 615178704), (40, 538281366), (42, 512648920), (48, 448567805), (49, 439413360), (56, 384486690), (60, 358854244), (70, 307589352), (80, 269140683), (84, 256324460), (98, 219706680), (105, 205059568), (112, 192243345), (120, 179427122), (140, 153794676), (147, 146471120), (168, 128162230), (196, 109853340), (210, 102529784), (240, 89713561), (245, 87882672), (280, 76897338), (294, 73235560), (336, 64081115), (392, 54926670), (420, 51264892), (490, 43941336), (560, 38448669), (588, 36617780), (735, 29294224), (784, 27463335), (840, 25632446), (980, 21970668), (1176, 18308890), (1470, 14647112), (1680, 12816223), (1960, 10985334), (2352, 9154445), (2940, 7323556), (3920, 5492667), (5880, 3661778), (11760, 1830889)]