18132009

素因数分解:

$3^1\times 7^3\times {\mathrm{67}}^1\times {\mathrm{263}}^1$

素因数の和:354

約数の個数: 32

約数和(自身を含む): 28723200

約数和(自身を除く): 10591191

約数列:

[1, 3, 7, 21, 49, 67, 147, 201, 263, 343, 469, 789, 1029, 1407, 1841, 3283, 5523, 9849, 12887, 17621, 22981, 38661, 52863, 68943, 90209, 123347, 270627, 370041, 863429, 2590287, 6044003, 18132009]

約数ペア:

[(1, 18132009), (3, 6044003), (7, 2590287), (21, 863429), (49, 370041), (67, 270627), (147, 123347), (201, 90209), (263, 68943), (343, 52863), (469, 38661), (789, 22981), (1029, 17621), (1407, 12887), (1841, 9849), (3283, 5523)]