20888927997

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{241259}}^1$

素因数の和:241326

約数の個数: 48

約数和(自身を含む): 35204659200

約数和(自身を除く): 14315731203

約数列:

[1, 3, 7, 19, 21, 31, 49, 57, 93, 133, 147, 217, 399, 589, 651, 931, 1519, 1767, 2793, 4123, 4557, 12369, 28861, 86583, 241259, 723777, 1688813, 4583921, 5066439, 7479029, 11821691, 13751763, 22437087, 32087447, 35465073, 52353203, 96262341, 142101551, 157059609, 224612129, 366472421, 426304653, 673836387, 994710857, 1099417263, 2984132571, 6962975999, 20888927997]

約数ペア:

[(1, 20888927997), (3, 6962975999), (7, 2984132571), (19, 1099417263), (21, 994710857), (31, 673836387), (49, 426304653), (57, 366472421), (93, 224612129), (133, 157059609), (147, 142101551), (217, 96262341), (399, 52353203), (589, 35465073), (651, 32087447), (931, 22437087), (1519, 13751763), (1767, 11821691), (2793, 7479029), (4123, 5066439), (4557, 4583921), (12369, 1688813), (28861, 723777), (86583, 241259)]