13215993

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{233}}^1$

素因数の和:353

約数の個数: 32

約数和(自身を含む): 21056256

約数和(自身を除く): 7840263

約数列:

[1, 3, 7, 21, 37, 73, 111, 219, 233, 259, 511, 699, 777, 1533, 1631, 2701, 4893, 8103, 8621, 17009, 18907, 25863, 51027, 56721, 60347, 119063, 181041, 357189, 629333, 1887999, 4405331, 13215993]

約数ペア:

[(1, 13215993), (3, 4405331), (7, 1887999), (21, 629333), (37, 357189), (73, 181041), (111, 119063), (219, 60347), (233, 56721), (259, 51027), (511, 25863), (699, 18907), (777, 17009), (1533, 8621), (1631, 8103), (2701, 4893)]