13420281

素因数分解:

$3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{4289}}^1$

素因数の和:4448

約数の個数: 16

約数和(自身を含む): 20592000

約数和(自身を除く): 7171719

約数列:

[1, 3, 7, 21, 149, 447, 1043, 3129, 4289, 12867, 30023, 90069, 639061, 1917183, 4473427, 13420281]

約数ペア:

[(1, 13420281), (3, 4473427), (7, 1917183), (21, 639061), (149, 90069), (447, 30023), (1043, 12867), (3129, 4289)]