2019505887

素因数分解:

$3^2\times 7^1\times {\mathrm{229}}^1\times {\mathrm{139981}}^1$

素因数の和:140223

約数の個数: 24

約数和(自身を含む): 3348369440

約数和(自身を除く): 1328863553

約数列:

[1, 3, 7, 9, 21, 63, 229, 687, 1603, 2061, 4809, 14427, 139981, 419943, 979867, 1259829, 2939601, 8818803, 32055649, 96166947, 224389543, 288500841, 673168629, 2019505887]

約数ペア:

[(1, 2019505887), (3, 673168629), (7, 288500841), (9, 224389543), (21, 96166947), (63, 32055649), (229, 8818803), (687, 2939601), (1603, 1259829), (2061, 979867), (4809, 419943), (14427, 139981)]