2001391

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1$

素因数の和:462

約数の個数: 16

約数和(自身を含む): 2469888

約数和(自身を除く): 468497

約数列:

[1, 7, 23, 31, 161, 217, 401, 713, 2807, 4991, 9223, 12431, 64561, 87017, 285913, 2001391]

約数ペア:

[(1, 2001391), (7, 285913), (23, 87017), (31, 64561), (161, 12431), (217, 9223), (401, 4991), (713, 2807)]