245139986

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{18451}}^1$

素因数の和:18546

約数の個数: 32

約数和(自身を含む): 458790528

約数和(自身を除く): 213650542

約数列:

[1, 2, 7, 13, 14, 26, 73, 91, 146, 182, 511, 949, 1022, 1898, 6643, 13286, 18451, 36902, 129157, 239863, 258314, 479726, 1346923, 1679041, 2693846, 3358082, 9428461, 17509999, 18856922, 35019998, 122569993, 245139986]

約数ペア:

[(1, 245139986), (2, 122569993), (7, 35019998), (13, 18856922), (14, 17509999), (26, 9428461), (73, 3358082), (91, 2693846), (146, 1679041), (182, 1346923), (511, 479726), (949, 258314), (1022, 239863), (1898, 129157), (6643, 36902), (13286, 18451)]