20921081497

素因数分解:

${\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{787}}^1\times {\mathrm{26879}}^1$

素因数の和:27732

約数の個数: 16

約数和(自身を含む): 22367600640

約数和(自身を除く): 1446519143

約数列:

[1, 23, 43, 787, 989, 18101, 26879, 33841, 618217, 778343, 1155797, 21153773, 26583331, 486536779, 909612239, 20921081497]

約数ペア:

[(1, 20921081497), (23, 909612239), (43, 486536779), (787, 26583331), (989, 21153773), (18101, 1155797), (26879, 778343), (33841, 618217)]