21650706

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:197

約数の個数: 128

約数和(自身を含む): 61931520

約数和(自身を除く): 40280814

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 27, 33, 41, 42, 54, 63, 66, 77, 82, 99, 123, 126, 127, 154, 189, 198, 231, 246, 254, 287, 297, 369, 378, 381, 451, 462, 574, 594, 693, 738, 762, 861, 889, 902, 1107, 1143, 1353, 1386, 1397, 1722, 1778, 2079, 2214, 2286, 2583, 2667, 2706, 2794, 3157, 3429, 4059, 4158, 4191, 5166, 5207, 5334, 6314, 6858, 7749, 8001, 8118, 8382, 9471, 9779, 10414, 12177, 12573, 15498, 15621, 16002, 18942, 19558, 24003, 24354, 25146, 28413, 29337, 31242, 36449, 37719, 46863, 48006, 56826, 57277, 58674, 72898, 75438, 85239, 88011, 93726, 109347, 114554, 140589, 170478, 171831, 176022, 218694, 264033, 281178, 328041, 343662, 400939, 515493, 528066, 656082, 801878, 984123, 1030986, 1202817, 1546479, 1968246, 2405634, 3092958, 3608451, 7216902, 10825353, 21650706]

約数ペア:

[(1, 21650706), (2, 10825353), (3, 7216902), (6, 3608451), (7, 3092958), (9, 2405634), (11, 1968246), (14, 1546479), (18, 1202817), (21, 1030986), (22, 984123), (27, 801878), (33, 656082), (41, 528066), (42, 515493), (54, 400939), (63, 343662), (66, 328041), (77, 281178), (82, 264033), (99, 218694), (123, 176022), (126, 171831), (127, 170478), (154, 140589), (189, 114554), (198, 109347), (231, 93726), (246, 88011), (254, 85239), (287, 75438), (297, 72898), (369, 58674), (378, 57277), (381, 56826), (451, 48006), (462, 46863), (574, 37719), (594, 36449), (693, 31242), (738, 29337), (762, 28413), (861, 25146), (889, 24354), (902, 24003), (1107, 19558), (1143, 18942), (1353, 16002), (1386, 15621), (1397, 15498), (1722, 12573), (1778, 12177), (2079, 10414), (2214, 9779), (2286, 9471), (2583, 8382), (2667, 8118), (2706, 8001), (2794, 7749), (3157, 6858), (3429, 6314), (4059, 5334), (4158, 5207), (4191, 5166)]