18720674

素因数分解:

$2^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{7001}}^1$

素因数の和:7201

約数の個数: 16

約数和(自身を含む): 32265216

約数和(自身を除く): 13544542

約数列:

[1, 2, 7, 14, 191, 382, 1337, 2674, 7001, 14002, 49007, 98014, 1337191, 2674382, 9360337, 18720674]

約数ペア:

[(1, 18720674), (2, 9360337), (7, 2674382), (14, 1337191), (191, 98014), (382, 49007), (1337, 14002), (2674, 7001)]