20178312707

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1\times {\mathrm{641}}^1\times {\mathrm{2341}}^1$

素因数の和:3119

約数の個数: 32

約数和(自身を含む): 24682506624

約数和(自身を除く): 4504193917

約数列:

[1, 7, 17, 113, 119, 641, 791, 1921, 2341, 4487, 10897, 13447, 16387, 39797, 72433, 76279, 264533, 278579, 507031, 1231361, 1500581, 1851731, 4497061, 8619527, 10504067, 25509877, 31479427, 169565653, 178569139, 1186959571, 2882616101, 20178312707]

約数ペア:

[(1, 20178312707), (7, 2882616101), (17, 1186959571), (113, 178569139), (119, 169565653), (641, 31479427), (791, 25509877), (1921, 10504067), (2341, 8619527), (4487, 4497061), (10897, 1851731), (13447, 1500581), (16387, 1231361), (39797, 507031), (72433, 278579), (76279, 264533)]