21691254

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{113}}^1$

素因数の和:261

約数の個数: 64

約数和(自身を含む): 49641984

約数和(自身を除く): 27950730

約数列:

[1, 2, 3, 6, 13, 23, 26, 39, 46, 69, 78, 107, 113, 138, 214, 226, 299, 321, 339, 598, 642, 678, 897, 1391, 1469, 1794, 2461, 2599, 2782, 2938, 4173, 4407, 4922, 5198, 7383, 7797, 8346, 8814, 12091, 14766, 15594, 24182, 31993, 33787, 36273, 63986, 67574, 72546, 95979, 101361, 157183, 191958, 202722, 278093, 314366, 471549, 556186, 834279, 943098, 1668558, 3615209, 7230418, 10845627, 21691254]

約数ペア:

[(1, 21691254), (2, 10845627), (3, 7230418), (6, 3615209), (13, 1668558), (23, 943098), (26, 834279), (39, 556186), (46, 471549), (69, 314366), (78, 278093), (107, 202722), (113, 191958), (138, 157183), (214, 101361), (226, 95979), (299, 72546), (321, 67574), (339, 63986), (598, 36273), (642, 33787), (678, 31993), (897, 24182), (1391, 15594), (1469, 14766), (1794, 12091), (2461, 8814), (2599, 8346), (2782, 7797), (2938, 7383), (4173, 5198), (4407, 4922)]