21505536018

素因数分解:

$2^1\times 3^3\times {\mathrm{398250667}}^1$

素因数の和:398250678

約数の個数: 16

約数和(自身を含む): 47790080160

約数和(自身を除く): 26284544142

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 398250667, 796501334, 1194752001, 2389504002, 3584256003, 7168512006, 10752768009, 21505536018]

約数ペア:

[(1, 21505536018), (2, 10752768009), (3, 7168512006), (6, 3584256003), (9, 2389504002), (18, 1194752001), (27, 796501334), (54, 398250667)]