20868386

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{97}}^1\times {\mathrm{127}}^1$

素因数の和:255

約数の個数: 48

約数和(自身を含む): 40040448

約数和(自身を除く): 19172062

約数列:

[1, 2, 7, 11, 14, 22, 77, 97, 121, 127, 154, 194, 242, 254, 679, 847, 889, 1067, 1358, 1397, 1694, 1778, 2134, 2794, 7469, 9779, 11737, 12319, 14938, 15367, 19558, 23474, 24638, 30734, 82159, 86233, 107569, 135509, 164318, 172466, 215138, 271018, 948563, 1490599, 1897126, 2981198, 10434193, 20868386]

約数ペア:

[(1, 20868386), (2, 10434193), (7, 2981198), (11, 1897126), (14, 1490599), (22, 948563), (77, 271018), (97, 215138), (121, 172466), (127, 164318), (154, 135509), (194, 107569), (242, 86233), (254, 82159), (679, 30734), (847, 24638), (889, 23474), (1067, 19558), (1358, 15367), (1397, 14938), (1694, 12319), (1778, 11737), (2134, 9779), (2794, 7469)]