20644533

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^2\times {\mathrm{277}}^1$

素因数の和:323

約数の個数: 54

約数和(自身を含む): 37697634

約数和(自身を除く): 17053101

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 169, 273, 277, 441, 507, 637, 819, 831, 1183, 1521, 1911, 1939, 2493, 3549, 3601, 5733, 5817, 8281, 10647, 10803, 13573, 17451, 24843, 25207, 32409, 40719, 46813, 74529, 75621, 122157, 140439, 176449, 226863, 327691, 421317, 529347, 983073, 1588041, 2293837, 2949219, 6881511, 20644533]

約数ペア:

[(1, 20644533), (3, 6881511), (7, 2949219), (9, 2293837), (13, 1588041), (21, 983073), (39, 529347), (49, 421317), (63, 327691), (91, 226863), (117, 176449), (147, 140439), (169, 122157), (273, 75621), (277, 74529), (441, 46813), (507, 40719), (637, 32409), (819, 25207), (831, 24843), (1183, 17451), (1521, 13573), (1911, 10803), (1939, 10647), (2493, 8281), (3549, 5817), (3601, 5733)]