20877003

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{193}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 37043136

約数和(自身を除く): 16166133

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 101, 119, 153, 193, 303, 357, 579, 707, 909, 1071, 1351, 1717, 1737, 2121, 3281, 4053, 5151, 6363, 9843, 12019, 12159, 15453, 19493, 22967, 29529, 36057, 58479, 68901, 108171, 136451, 175437, 206703, 331381, 409353, 994143, 1228059, 2319667, 2982429, 6959001, 20877003]

約数ペア:

[(1, 20877003), (3, 6959001), (7, 2982429), (9, 2319667), (17, 1228059), (21, 994143), (51, 409353), (63, 331381), (101, 206703), (119, 175437), (153, 136451), (193, 108171), (303, 68901), (357, 58479), (579, 36057), (707, 29529), (909, 22967), (1071, 19493), (1351, 15453), (1717, 12159), (1737, 12019), (2121, 9843), (3281, 6363), (4053, 5151)]