20644052

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1$

素因数の和:249

約数の個数: 72

約数和(自身を含む): 45514728

約数和(自身を除く): 24870676

約数列:

[1, 2, 4, 11, 13, 17, 22, 26, 34, 44, 52, 68, 121, 143, 187, 193, 221, 242, 286, 374, 386, 442, 484, 572, 748, 772, 884, 1573, 2057, 2123, 2431, 2509, 3146, 3281, 4114, 4246, 4862, 5018, 6292, 6562, 8228, 8492, 9724, 10036, 13124, 23353, 26741, 27599, 36091, 42653, 46706, 53482, 55198, 72182, 85306, 93412, 106964, 110396, 144364, 170612, 303589, 397001, 469183, 607178, 794002, 938366, 1214356, 1588004, 1876732, 5161013, 10322026, 20644052]

約数ペア:

[(1, 20644052), (2, 10322026), (4, 5161013), (11, 1876732), (13, 1588004), (17, 1214356), (22, 938366), (26, 794002), (34, 607178), (44, 469183), (52, 397001), (68, 303589), (121, 170612), (143, 144364), (187, 110396), (193, 106964), (221, 93412), (242, 85306), (286, 72182), (374, 55198), (386, 53482), (442, 46706), (484, 42653), (572, 36091), (748, 27599), (772, 26741), (884, 23353), (1573, 13124), (2057, 10036), (2123, 9724), (2431, 8492), (2509, 8228), (3146, 6562), (3281, 6292), (4114, 5018), (4246, 4862)]