16720378

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{977}}^1$

素因数の和:1221

約数の個数: 16

約数和(自身を含む): 25819200

約数和(自身を除く): 9098822

約数列:

[1, 2, 43, 86, 199, 398, 977, 1954, 8557, 17114, 42011, 84022, 194423, 388846, 8360189, 16720378]

約数ペア:

[(1, 16720378), (2, 8360189), (43, 388846), (86, 194423), (199, 84022), (398, 42011), (977, 17114), (1954, 8557)]