247991787

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{65141}}^1$

素因数の和:65200

約数の個数: 20

約数和(自身を含む): 378344736

約数和(自身を除く): 130352949

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 65141, 195423, 586269, 1758807, 3061627, 5276421, 9184881, 27554643, 82663929, 247991787]

約数ペア:

[(1, 247991787), (3, 82663929), (9, 27554643), (27, 9184881), (47, 5276421), (81, 3061627), (141, 1758807), (423, 586269), (1269, 195423), (3807, 65141)]