17991036018

素因数分解:

$2^1\times 3^2\times {\mathrm{999502001}}^1$

素因数の和:999502009

約数の個数: 12

約数和(自身を含む): 38980578078

約数和(自身を除く): 20989542060

約数列:

[1, 2, 3, 6, 9, 18, 999502001, 1999004002, 2998506003, 5997012006, 8995518009, 17991036018]

約数ペア:

[(1, 17991036018), (2, 8995518009), (3, 5997012006), (6, 2998506003), (9, 1999004002), (18, 999502001)]