20796678

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1$

素因数の和:131

約数の個数: 144

約数和(自身を含む): 59220720

約数和(自身を除く): 38424042

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 19, 21, 34, 38, 42, 49, 51, 57, 63, 73, 98, 102, 114, 119, 126, 133, 146, 147, 153, 171, 219, 238, 266, 294, 306, 323, 342, 357, 399, 438, 441, 511, 646, 657, 714, 798, 833, 882, 931, 969, 1022, 1071, 1197, 1241, 1314, 1387, 1533, 1666, 1862, 1938, 2142, 2261, 2394, 2482, 2499, 2774, 2793, 2907, 3066, 3577, 3723, 4161, 4522, 4599, 4998, 5586, 5814, 6783, 7154, 7446, 7497, 8322, 8379, 8687, 9198, 9709, 10731, 11169, 12483, 13566, 14994, 15827, 16758, 17374, 19418, 20349, 21462, 22338, 23579, 24966, 26061, 29127, 31654, 32193, 40698, 47158, 47481, 52122, 58254, 60809, 64386, 67963, 70737, 78183, 87381, 94962, 121618, 135926, 141474, 142443, 156366, 165053, 174762, 182427, 203889, 212211, 284886, 330106, 364854, 407778, 424422, 495159, 547281, 611667, 990318, 1094562, 1155371, 1223334, 1485477, 2310742, 2970954, 3466113, 6932226, 10398339, 20796678]

約数ペア:

[(1, 20796678), (2, 10398339), (3, 6932226), (6, 3466113), (7, 2970954), (9, 2310742), (14, 1485477), (17, 1223334), (18, 1155371), (19, 1094562), (21, 990318), (34, 611667), (38, 547281), (42, 495159), (49, 424422), (51, 407778), (57, 364854), (63, 330106), (73, 284886), (98, 212211), (102, 203889), (114, 182427), (119, 174762), (126, 165053), (133, 156366), (146, 142443), (147, 141474), (153, 135926), (171, 121618), (219, 94962), (238, 87381), (266, 78183), (294, 70737), (306, 67963), (323, 64386), (342, 60809), (357, 58254), (399, 52122), (438, 47481), (441, 47158), (511, 40698), (646, 32193), (657, 31654), (714, 29127), (798, 26061), (833, 24966), (882, 23579), (931, 22338), (969, 21462), (1022, 20349), (1071, 19418), (1197, 17374), (1241, 16758), (1314, 15827), (1387, 14994), (1533, 13566), (1666, 12483), (1862, 11169), (1938, 10731), (2142, 9709), (2261, 9198), (2394, 8687), (2482, 8379), (2499, 8322), (2774, 7497), (2793, 7446), (2907, 7154), (3066, 6783), (3577, 5814), (3723, 5586), (4161, 4998), (4522, 4599)]