21566412

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{37}}^1\times {\mathrm{257}}^1$

素因数の和:317

約数の個数: 120

約数和(自身を含む): 66431904

約数和(自身を除く): 44865492

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 37, 42, 54, 63, 74, 81, 84, 108, 111, 126, 148, 162, 189, 222, 252, 257, 259, 324, 333, 378, 444, 514, 518, 567, 666, 756, 771, 777, 999, 1028, 1036, 1134, 1332, 1542, 1554, 1799, 1998, 2268, 2313, 2331, 2997, 3084, 3108, 3598, 3996, 4626, 4662, 5397, 5994, 6939, 6993, 7196, 9252, 9324, 9509, 10794, 11988, 13878, 13986, 16191, 19018, 20817, 20979, 21588, 27756, 27972, 28527, 32382, 38036, 41634, 41958, 48573, 57054, 64764, 66563, 83268, 83916, 85581, 97146, 114108, 133126, 145719, 171162, 194292, 199689, 256743, 266252, 291438, 342324, 399378, 513486, 582876, 599067, 770229, 798756, 1026972, 1198134, 1540458, 1797201, 2396268, 3080916, 3594402, 5391603, 7188804, 10783206, 21566412]

約数ペア:

[(1, 21566412), (2, 10783206), (3, 7188804), (4, 5391603), (6, 3594402), (7, 3080916), (9, 2396268), (12, 1797201), (14, 1540458), (18, 1198134), (21, 1026972), (27, 798756), (28, 770229), (36, 599067), (37, 582876), (42, 513486), (54, 399378), (63, 342324), (74, 291438), (81, 266252), (84, 256743), (108, 199689), (111, 194292), (126, 171162), (148, 145719), (162, 133126), (189, 114108), (222, 97146), (252, 85581), (257, 83916), (259, 83268), (324, 66563), (333, 64764), (378, 57054), (444, 48573), (514, 41958), (518, 41634), (567, 38036), (666, 32382), (756, 28527), (771, 27972), (777, 27756), (999, 21588), (1028, 20979), (1036, 20817), (1134, 19018), (1332, 16191), (1542, 13986), (1554, 13878), (1799, 11988), (1998, 10794), (2268, 9509), (2313, 9324), (2331, 9252), (2997, 7196), (3084, 6993), (3108, 6939), (3598, 5994), (3996, 5397), (4626, 4662)]