20172186531

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{256771}}^1$

素因数の和:256856

約数の個数: 48

約数和(自身を含む): 35249660160

約数和(自身を除く): 15077473629

約数列:

[1, 3, 7, 9, 21, 29, 43, 63, 87, 129, 203, 261, 301, 387, 609, 903, 1247, 1827, 2709, 3741, 8729, 11223, 26187, 78561, 256771, 770313, 1797397, 2310939, 5392191, 7446359, 11041153, 16176573, 22339077, 33123459, 52124513, 67017231, 77288071, 99370377, 156373539, 231864213, 320193437, 469120617, 695592639, 960580311, 2241354059, 2881740933, 6724062177, 20172186531]

約数ペア:

[(1, 20172186531), (3, 6724062177), (7, 2881740933), (9, 2241354059), (21, 960580311), (29, 695592639), (43, 469120617), (63, 320193437), (87, 231864213), (129, 156373539), (203, 99370377), (261, 77288071), (301, 67017231), (387, 52124513), (609, 33123459), (903, 22339077), (1247, 16176573), (1827, 11041153), (2709, 7446359), (3741, 5392191), (8729, 2310939), (11223, 1797397), (26187, 770313), (78561, 256771)]