21741291

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1877}}^1$

素因数の和:1913

約数の個数: 40

約数和(自身を含む): 38175984

約数和(自身を除く): 16434693

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 81, 99, 117, 143, 297, 351, 429, 891, 1053, 1287, 1877, 3861, 5631, 11583, 16893, 20647, 24401, 50679, 61941, 73203, 152037, 185823, 219609, 268411, 557469, 658827, 805233, 1672407, 1976481, 2415699, 7247097, 21741291]

約数ペア:

[(1, 21741291), (3, 7247097), (9, 2415699), (11, 1976481), (13, 1672407), (27, 805233), (33, 658827), (39, 557469), (81, 268411), (99, 219609), (117, 185823), (143, 152037), (297, 73203), (351, 61941), (429, 50679), (891, 24401), (1053, 20647), (1287, 16893), (1877, 11583), (3861, 5631)]