218758001

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{521}}^1$

素因数の和:606

約数の個数: 48

約数和(自身を含む): 299920320

約数和(自身を除く): 81162319

約数列:

[1, 7, 11, 19, 41, 49, 77, 133, 209, 287, 451, 521, 539, 779, 931, 1463, 2009, 3157, 3647, 5453, 5731, 8569, 9899, 10241, 21361, 22099, 25529, 38171, 40117, 59983, 69293, 108889, 149527, 234971, 280819, 405859, 419881, 485051, 762223, 1046689, 1644797, 2841013, 4464449, 5335561, 11513579, 19887091, 31251143, 218758001]

約数ペア:

[(1, 218758001), (7, 31251143), (11, 19887091), (19, 11513579), (41, 5335561), (49, 4464449), (77, 2841013), (133, 1644797), (209, 1046689), (287, 762223), (451, 485051), (521, 419881), (539, 405859), (779, 280819), (931, 234971), (1463, 149527), (2009, 108889), (3157, 69293), (3647, 59983), (5453, 40117), (5731, 38171), (8569, 25529), (9899, 22099), (10241, 21361)]