21787794

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{479}}^1$

素因数の和:532

約数の個数: 72

約数和(自身を含む): 57058560

約数和(自身を除く): 35270766

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 38, 42, 57, 63, 114, 126, 133, 171, 266, 342, 361, 399, 479, 722, 798, 958, 1083, 1197, 1437, 2166, 2394, 2527, 2874, 3249, 3353, 4311, 5054, 6498, 6706, 7581, 8622, 9101, 10059, 15162, 18202, 20118, 22743, 27303, 30177, 45486, 54606, 60354, 63707, 81909, 127414, 163818, 172919, 191121, 345838, 382242, 518757, 573363, 1037514, 1146726, 1210433, 1556271, 2420866, 3112542, 3631299, 7262598, 10893897, 21787794]

約数ペア:

[(1, 21787794), (2, 10893897), (3, 7262598), (6, 3631299), (7, 3112542), (9, 2420866), (14, 1556271), (18, 1210433), (19, 1146726), (21, 1037514), (38, 573363), (42, 518757), (57, 382242), (63, 345838), (114, 191121), (126, 172919), (133, 163818), (171, 127414), (266, 81909), (342, 63707), (361, 60354), (399, 54606), (479, 45486), (722, 30177), (798, 27303), (958, 22743), (1083, 20118), (1197, 18202), (1437, 15162), (2166, 10059), (2394, 9101), (2527, 8622), (2874, 7581), (3249, 6706), (3353, 6498), (4311, 5054)]