20907216

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:289

約数の個数: 120

約数和(自身を含む): 65111904

約数和(自身を除く): 44204688

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 44, 48, 66, 67, 72, 88, 99, 132, 134, 144, 176, 197, 198, 201, 264, 268, 394, 396, 402, 528, 536, 591, 603, 737, 788, 792, 804, 1072, 1182, 1206, 1474, 1576, 1584, 1608, 1773, 2167, 2211, 2364, 2412, 2948, 3152, 3216, 3546, 4334, 4422, 4728, 4824, 5896, 6501, 6633, 7092, 8668, 8844, 9456, 9648, 11792, 13002, 13199, 13266, 14184, 17336, 17688, 19503, 26004, 26398, 26532, 28368, 34672, 35376, 39006, 39597, 52008, 52796, 53064, 78012, 79194, 104016, 105592, 106128, 118791, 145189, 156024, 158388, 211184, 237582, 290378, 312048, 316776, 435567, 475164, 580756, 633552, 871134, 950328, 1161512, 1306701, 1742268, 1900656, 2323024, 2613402, 3484536, 5226804, 6969072, 10453608, 20907216]

約数ペア:

[(1, 20907216), (2, 10453608), (3, 6969072), (4, 5226804), (6, 3484536), (8, 2613402), (9, 2323024), (11, 1900656), (12, 1742268), (16, 1306701), (18, 1161512), (22, 950328), (24, 871134), (33, 633552), (36, 580756), (44, 475164), (48, 435567), (66, 316776), (67, 312048), (72, 290378), (88, 237582), (99, 211184), (132, 158388), (134, 156024), (144, 145189), (176, 118791), (197, 106128), (198, 105592), (201, 104016), (264, 79194), (268, 78012), (394, 53064), (396, 52796), (402, 52008), (528, 39597), (536, 39006), (591, 35376), (603, 34672), (737, 28368), (788, 26532), (792, 26398), (804, 26004), (1072, 19503), (1182, 17688), (1206, 17336), (1474, 14184), (1576, 13266), (1584, 13199), (1608, 13002), (1773, 11792), (2167, 9648), (2211, 9456), (2364, 8844), (2412, 8668), (2948, 7092), (3152, 6633), (3216, 6501), (3546, 5896), (4334, 4824), (4422, 4728)]