221567334261

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^2\times {\mathrm{263}}^1$

素因数の和:723

約数の個数: 96

約数和(自身を含む): 370089646080

約数和(自身を除く): 148522311819

約数列:

[1, 3, 7, 13, 21, 39, 91, 139, 149, 263, 273, 417, 447, 789, 973, 1043, 1807, 1841, 1937, 2919, 3129, 3419, 5421, 5523, 5811, 10257, 12649, 13559, 20711, 22201, 23933, 36557, 37947, 39187, 40677, 62133, 66603, 71799, 109671, 117561, 144977, 155407, 255899, 269243, 274309, 288613, 434931, 466221, 475241, 509431, 767697, 807729, 822927, 865839, 1425723, 1528293, 1884701, 2020291, 3085939, 3326687, 3566017, 5446993, 5654103, 5838863, 6060873, 9257817, 9980061, 10698051, 16340979, 17516589, 21601573, 38128951, 40117207, 40872041, 64804719, 70810909, 75905219, 114386853, 120351621, 122616123, 212432727, 227715657, 280820449, 495676363, 531336533, 811601957, 842461347, 1487029089, 1594009599, 2434805871, 5681213699, 10550825441, 17043641097, 31652476323, 73855778087, 221567334261]

約数ペア:

[(1, 221567334261), (3, 73855778087), (7, 31652476323), (13, 17043641097), (21, 10550825441), (39, 5681213699), (91, 2434805871), (139, 1594009599), (149, 1487029089), (263, 842461347), (273, 811601957), (417, 531336533), (447, 495676363), (789, 280820449), (973, 227715657), (1043, 212432727), (1807, 122616123), (1841, 120351621), (1937, 114386853), (2919, 75905219), (3129, 70810909), (3419, 64804719), (5421, 40872041), (5523, 40117207), (5811, 38128951), (10257, 21601573), (12649, 17516589), (13559, 16340979), (20711, 10698051), (22201, 9980061), (23933, 9257817), (36557, 6060873), (37947, 5838863), (39187, 5654103), (40677, 5446993), (62133, 3566017), (66603, 3326687), (71799, 3085939), (109671, 2020291), (117561, 1884701), (144977, 1528293), (155407, 1425723), (255899, 865839), (269243, 822927), (274309, 807729), (288613, 767697), (434931, 509431), (466221, 475241)]