172787181

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{281}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 277758720

約数和(自身を除く): 104971539

約数列:

[1, 3, 7, 21, 47, 49, 89, 141, 147, 267, 281, 329, 623, 843, 987, 1869, 1967, 2303, 4183, 4361, 5901, 6909, 12549, 13083, 13207, 13769, 25009, 29281, 39621, 41307, 75027, 87843, 92449, 175063, 204967, 277347, 525189, 614901, 647143, 1175423, 1225441, 1941429, 3526269, 3676323, 8227961, 24683883, 57595727, 172787181]

約数ペア:

[(1, 172787181), (3, 57595727), (7, 24683883), (21, 8227961), (47, 3676323), (49, 3526269), (89, 1941429), (141, 1225441), (147, 1175423), (267, 647143), (281, 614901), (329, 525189), (623, 277347), (843, 204967), (987, 175063), (1869, 92449), (1967, 87843), (2303, 75027), (4183, 41307), (4361, 39621), (5901, 29281), (6909, 25009), (12549, 13769), (13083, 13207)]