691777149

素因数分解:

$3^1\times 7^3\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{107}}^1$

素因数の和:295

約数の個数: 64

約数和(自身を含む): 1114214400

約数和(自身を除く): 422437251

約数列:

[1, 3, 7, 21, 49, 61, 103, 107, 147, 183, 309, 321, 343, 427, 721, 749, 1029, 1281, 2163, 2247, 2989, 5047, 5243, 6283, 6527, 8967, 11021, 15141, 15729, 18849, 19581, 20923, 33063, 35329, 36701, 43981, 45689, 62769, 77147, 105987, 110103, 131943, 137067, 231441, 307867, 319823, 540029, 672281, 923601, 959469, 1620087, 2016843, 2155069, 2238761, 3780203, 4705967, 6465207, 6716283, 11340609, 14117901, 32941769, 98825307, 230592383, 691777149]

約数ペア:

[(1, 691777149), (3, 230592383), (7, 98825307), (21, 32941769), (49, 14117901), (61, 11340609), (103, 6716283), (107, 6465207), (147, 4705967), (183, 3780203), (309, 2238761), (321, 2155069), (343, 2016843), (427, 1620087), (721, 959469), (749, 923601), (1029, 672281), (1281, 540029), (2163, 319823), (2247, 307867), (2989, 231441), (5047, 137067), (5243, 131943), (6283, 110103), (6527, 105987), (8967, 77147), (11021, 62769), (15141, 45689), (15729, 43981), (18849, 36701), (19581, 35329), (20923, 33063)]