53509221

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{271}}^1$

素因数の和:454

約数の個数: 32

約数和(自身を含む): 81469440

約数和(自身を除く): 27960219

約数列:

[1, 3, 9, 27, 71, 103, 213, 271, 309, 639, 813, 927, 1917, 2439, 2781, 7313, 7317, 19241, 21939, 27913, 57723, 65817, 83739, 173169, 197451, 251217, 519507, 753651, 1981823, 5945469, 17836407, 53509221]

約数ペア:

[(1, 53509221), (3, 17836407), (9, 5945469), (27, 1981823), (71, 753651), (103, 519507), (213, 251217), (271, 197451), (309, 173169), (639, 83739), (813, 65817), (927, 57723), (1917, 27913), (2439, 21939), (2781, 19241), (7313, 7317)]