18888331

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:283

約数の個数: 32

約数和(自身を含む): 25030656

約数和(自身を除く): 6142325

約数列:

[1, 7, 11, 31, 41, 77, 193, 217, 287, 341, 451, 1271, 1351, 2123, 2387, 3157, 5983, 7913, 8897, 13981, 14861, 41881, 55391, 65813, 87043, 97867, 245303, 460691, 609301, 1717121, 2698333, 18888331]

約数ペア:

[(1, 18888331), (7, 2698333), (11, 1717121), (31, 609301), (41, 460691), (77, 245303), (193, 97867), (217, 87043), (287, 65813), (341, 55391), (451, 41881), (1271, 14861), (1351, 13981), (2123, 8897), (2387, 7913), (3157, 5983)]