17818884

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{239}}^1$

素因数の和:377

約数の個数: 72

約数和(自身を含む): 48048000

約数和(自身を除く): 30229116

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 109, 114, 171, 218, 228, 239, 327, 342, 436, 478, 654, 684, 717, 956, 981, 1308, 1434, 1962, 2071, 2151, 2868, 3924, 4142, 4302, 4541, 6213, 8284, 8604, 9082, 12426, 13623, 18164, 18639, 24852, 26051, 27246, 37278, 40869, 52102, 54492, 74556, 78153, 81738, 104204, 156306, 163476, 234459, 312612, 468918, 494969, 937836, 989938, 1484907, 1979876, 2969814, 4454721, 5939628, 8909442, 17818884]

約数ペア:

[(1, 17818884), (2, 8909442), (3, 5939628), (4, 4454721), (6, 2969814), (9, 1979876), (12, 1484907), (18, 989938), (19, 937836), (36, 494969), (38, 468918), (57, 312612), (76, 234459), (109, 163476), (114, 156306), (171, 104204), (218, 81738), (228, 78153), (239, 74556), (327, 54492), (342, 52102), (436, 40869), (478, 37278), (654, 27246), (684, 26051), (717, 24852), (956, 18639), (981, 18164), (1308, 13623), (1434, 12426), (1962, 9082), (2071, 8604), (2151, 8284), (2868, 6213), (3924, 4541), (4142, 4302)]