20217507849

素因数分解:

$3^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1389233}}^1$

素因数の和:1389267

約数の個数: 48

約数和(自身を含む): 38009442240

約数和(自身を除く): 17791934391

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 49, 63, 77, 99, 147, 189, 231, 297, 441, 539, 693, 1323, 1617, 2079, 4851, 14553, 1389233, 4167699, 9724631, 12503097, 15281563, 29173893, 37509291, 45844689, 68072417, 87521679, 106970941, 137534067, 204217251, 262565037, 320912823, 412602201, 612651753, 748796587, 962738469, 1837955259, 2246389761, 2888215407, 6739169283, 20217507849]

約数ペア:

[(1, 20217507849), (3, 6739169283), (7, 2888215407), (9, 2246389761), (11, 1837955259), (21, 962738469), (27, 748796587), (33, 612651753), (49, 412602201), (63, 320912823), (77, 262565037), (99, 204217251), (147, 137534067), (189, 106970941), (231, 87521679), (297, 68072417), (441, 45844689), (539, 37509291), (693, 29173893), (1323, 15281563), (1617, 12503097), (2079, 9724631), (4851, 4167699), (14553, 1389233)]