21031903881

素因数分解:

$3^3\times {\mathrm{809}}^1\times {\mathrm{962867}}^1$

素因数の和:963685

約数の個数: 16

約数和(自身を含む): 31196923200

約数和(自身を除く): 10165019319

約数列:

[1, 3, 9, 27, 809, 2427, 7281, 21843, 962867, 2888601, 8665803, 25997409, 778959403, 2336878209, 7010634627, 21031903881]

約数ペア:

[(1, 21031903881), (3, 7010634627), (9, 2336878209), (27, 778959403), (809, 25997409), (2427, 8665803), (7281, 2888601), (21843, 962867)]