19518444

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{2143}}^1$

素因数の和:2187

約数の個数: 72

約数和(自身を含む): 56189952

約数和(自身を除く): 36671508

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 23, 33, 36, 44, 46, 66, 69, 92, 99, 132, 138, 198, 207, 253, 276, 396, 414, 506, 759, 828, 1012, 1518, 2143, 2277, 3036, 4286, 4554, 6429, 8572, 9108, 12858, 19287, 23573, 25716, 38574, 47146, 49289, 70719, 77148, 94292, 98578, 141438, 147867, 197156, 212157, 282876, 295734, 424314, 443601, 542179, 591468, 848628, 887202, 1084358, 1626537, 1774404, 2168716, 3253074, 4879611, 6506148, 9759222, 19518444]

約数ペア:

[(1, 19518444), (2, 9759222), (3, 6506148), (4, 4879611), (6, 3253074), (9, 2168716), (11, 1774404), (12, 1626537), (18, 1084358), (22, 887202), (23, 848628), (33, 591468), (36, 542179), (44, 443601), (46, 424314), (66, 295734), (69, 282876), (92, 212157), (99, 197156), (132, 147867), (138, 141438), (198, 98578), (207, 94292), (253, 77148), (276, 70719), (396, 49289), (414, 47146), (506, 38574), (759, 25716), (828, 23573), (1012, 19287), (1518, 12858), (2143, 9108), (2277, 8572), (3036, 6429), (4286, 4554)]