20992188

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1879}}^1$

素因数の和:1919

約数の個数: 72

約数和(自身を含む): 60009600

約数和(自身を除く): 39017412

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 49, 57, 76, 84, 98, 114, 133, 147, 196, 228, 266, 294, 399, 532, 588, 798, 931, 1596, 1862, 1879, 2793, 3724, 3758, 5586, 5637, 7516, 11172, 11274, 13153, 22548, 26306, 35701, 39459, 52612, 71402, 78918, 92071, 107103, 142804, 157836, 184142, 214206, 249907, 276213, 368284, 428412, 499814, 552426, 749721, 999628, 1104852, 1499442, 1749349, 2998884, 3498698, 5248047, 6997396, 10496094, 20992188]

約数ペア:

[(1, 20992188), (2, 10496094), (3, 6997396), (4, 5248047), (6, 3498698), (7, 2998884), (12, 1749349), (14, 1499442), (19, 1104852), (21, 999628), (28, 749721), (38, 552426), (42, 499814), (49, 428412), (57, 368284), (76, 276213), (84, 249907), (98, 214206), (114, 184142), (133, 157836), (147, 142804), (196, 107103), (228, 92071), (266, 78918), (294, 71402), (399, 52612), (532, 39459), (588, 35701), (798, 26306), (931, 22548), (1596, 13153), (1862, 11274), (1879, 11172), (2793, 7516), (3724, 5637), (3758, 5586)]