21255588

素因数分解:

$2^2\times 3^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1$

素因数の和:278

約数の個数: 96

約数和(自身を含む): 59136000

約数和(自身を除く): 37880412

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 27, 36, 43, 46, 54, 69, 86, 92, 108, 129, 138, 172, 199, 207, 258, 276, 387, 398, 414, 516, 597, 621, 774, 796, 828, 989, 1161, 1194, 1242, 1548, 1791, 1978, 2322, 2388, 2484, 2967, 3582, 3956, 4577, 4644, 5373, 5934, 7164, 8557, 8901, 9154, 10746, 11868, 13731, 17114, 17802, 18308, 21492, 25671, 26703, 27462, 34228, 35604, 41193, 51342, 53406, 54924, 77013, 82386, 102684, 106812, 123579, 154026, 164772, 196811, 231039, 247158, 308052, 393622, 462078, 494316, 590433, 787244, 924156, 1180866, 1771299, 2361732, 3542598, 5313897, 7085196, 10627794, 21255588]

約数ペア:

[(1, 21255588), (2, 10627794), (3, 7085196), (4, 5313897), (6, 3542598), (9, 2361732), (12, 1771299), (18, 1180866), (23, 924156), (27, 787244), (36, 590433), (43, 494316), (46, 462078), (54, 393622), (69, 308052), (86, 247158), (92, 231039), (108, 196811), (129, 164772), (138, 154026), (172, 123579), (199, 106812), (207, 102684), (258, 82386), (276, 77013), (387, 54924), (398, 53406), (414, 51342), (516, 41193), (597, 35604), (621, 34228), (774, 27462), (796, 26703), (828, 25671), (989, 21492), (1161, 18308), (1194, 17802), (1242, 17114), (1548, 13731), (1791, 11868), (1978, 10746), (2322, 9154), (2388, 8901), (2484, 8557), (2967, 7164), (3582, 5934), (3956, 5373), (4577, 4644)]