13205361

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:357

約数の個数: 32

約数和(自身を含む): 20321280

約数和(自身を除く): 7115919

約数列:

[1, 3, 13, 19, 39, 57, 71, 213, 247, 251, 741, 753, 923, 1349, 2769, 3263, 4047, 4769, 9789, 14307, 17537, 17821, 52611, 53463, 61997, 185991, 231673, 338599, 695019, 1015797, 4401787, 13205361]

約数ペア:

[(1, 13205361), (3, 4401787), (13, 1015797), (19, 695019), (39, 338599), (57, 231673), (71, 185991), (213, 61997), (247, 53463), (251, 52611), (741, 17821), (753, 17537), (923, 14307), (1349, 9789), (2769, 4769), (3263, 4047)]