2021103385

素因数分解:

$5^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{133981}}^1$

素因数の和:134424

約数の個数: 16

約数和(自身を含む): 2778250752

約数和(自身を除く): 757147367

約数列:

[1, 5, 7, 35, 431, 2155, 3017, 15085, 133981, 669905, 937867, 4689335, 57745811, 288729055, 404220677, 2021103385]

約数ペア:

[(1, 2021103385), (5, 404220677), (7, 288729055), (35, 57745811), (431, 4689335), (2155, 937867), (3017, 669905), (15085, 133981)]