21256936008

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{310883}}^1$

素因数の和:310947

約数の個数: 128

約数和(自身を含む): 68046289920

約数和(自身を除く): 46789353912

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 33, 37, 42, 44, 56, 66, 74, 77, 84, 88, 111, 132, 148, 154, 168, 222, 231, 259, 264, 296, 308, 407, 444, 462, 518, 616, 777, 814, 888, 924, 1036, 1221, 1554, 1628, 1848, 2072, 2442, 2849, 3108, 3256, 4884, 5698, 6216, 8547, 9768, 11396, 17094, 22792, 34188, 68376, 310883, 621766, 932649, 1243532, 1865298, 2176181, 2487064, 3419713, 3730596, 4352362, 6528543, 6839426, 7461192, 8704724, 10259139, 11502671, 13057086, 13678852, 17409448, 20518278, 23005342, 23937991, 26114172, 27357704, 34508013, 41036556, 46010684, 47875982, 52228344, 69016026, 71813973, 80518697, 82073112, 92021368, 95751964, 126529381, 138032052, 143627946, 161037394, 191503928, 241556091, 253058762, 276064104, 287255892, 322074788, 379588143, 483112182, 506117524, 574511784, 644149576, 759176286, 885705667, 966224364, 1012235048, 1518352572, 1771411334, 1932448728, 2657117001, 3036705144, 3542822668, 5314234002, 7085645336, 10628468004, 21256936008]

約数ペア:

[(1, 21256936008), (2, 10628468004), (3, 7085645336), (4, 5314234002), (6, 3542822668), (7, 3036705144), (8, 2657117001), (11, 1932448728), (12, 1771411334), (14, 1518352572), (21, 1012235048), (22, 966224364), (24, 885705667), (28, 759176286), (33, 644149576), (37, 574511784), (42, 506117524), (44, 483112182), (56, 379588143), (66, 322074788), (74, 287255892), (77, 276064104), (84, 253058762), (88, 241556091), (111, 191503928), (132, 161037394), (148, 143627946), (154, 138032052), (168, 126529381), (222, 95751964), (231, 92021368), (259, 82073112), (264, 80518697), (296, 71813973), (308, 69016026), (407, 52228344), (444, 47875982), (462, 46010684), (518, 41036556), (616, 34508013), (777, 27357704), (814, 26114172), (888, 23937991), (924, 23005342), (1036, 20518278), (1221, 17409448), (1554, 13678852), (1628, 13057086), (1848, 11502671), (2072, 10259139), (2442, 8704724), (2849, 7461192), (3108, 6839426), (3256, 6528543), (4884, 4352362), (5698, 3730596), (6216, 3419713), (8547, 2487064), (9768, 2176181), (11396, 1865298), (17094, 1243532), (22792, 932649), (34188, 621766), (68376, 310883)]