221308857

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{7789}}^1$

素因数の和:7854

約数の個数: 48

約数和(自身を含む): 408320640

約数和(自身を除く): 187011783

約数列:

[1, 3, 7, 9, 11, 21, 33, 41, 63, 77, 99, 123, 231, 287, 369, 451, 693, 861, 1353, 2583, 3157, 4059, 7789, 9471, 23367, 28413, 54523, 70101, 85679, 163569, 257037, 319349, 490707, 599753, 771111, 958047, 1799259, 2235443, 2874141, 3512839, 5397777, 6706329, 10538517, 20118987, 24589873, 31615551, 73769619, 221308857]

約数ペア:

[(1, 221308857), (3, 73769619), (7, 31615551), (9, 24589873), (11, 20118987), (21, 10538517), (33, 6706329), (41, 5397777), (63, 3512839), (77, 2874141), (99, 2235443), (123, 1799259), (231, 958047), (287, 771111), (369, 599753), (451, 490707), (693, 319349), (861, 257037), (1353, 163569), (2583, 85679), (3157, 70101), (4059, 54523), (7789, 28413), (9471, 23367)]