221497353

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{2333}}^1$

素因数の和:2494

約数の個数: 48

約数和(自身を含む): 401970816

約数和(自身を除く): 180473463

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 137, 231, 411, 693, 959, 1233, 1507, 2333, 2877, 4521, 6999, 8631, 10549, 13563, 16331, 20997, 25663, 31647, 48993, 76989, 94941, 146979, 179641, 230967, 319621, 538923, 958863, 1616769, 2237347, 2876589, 3515831, 6712041, 10547493, 20136123, 24610817, 31642479, 73832451, 221497353]

約数ペア:

[(1, 221497353), (3, 73832451), (7, 31642479), (9, 24610817), (11, 20136123), (21, 10547493), (33, 6712041), (63, 3515831), (77, 2876589), (99, 2237347), (137, 1616769), (231, 958863), (411, 538923), (693, 319621), (959, 230967), (1233, 179641), (1507, 146979), (2333, 94941), (2877, 76989), (4521, 48993), (6999, 31647), (8631, 25663), (10549, 20997), (13563, 16331)]