289348521

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:422

約数の個数: 64

約数和(自身を含む): 498548736

約数和(自身を除く): 209200215

約数列:

[1, 3, 7, 11, 21, 33, 41, 77, 123, 137, 223, 231, 287, 411, 451, 669, 861, 959, 1353, 1507, 1561, 2453, 2877, 3157, 4521, 4683, 5617, 7359, 9143, 9471, 10549, 16851, 17171, 27429, 30551, 31647, 39319, 51513, 61787, 64001, 91653, 100573, 117957, 185361, 192003, 213857, 301719, 336061, 432509, 641571, 704011, 1008183, 1252591, 1297527, 2112033, 2352427, 3757773, 7057281, 8768137, 13778501, 26304411, 41335503, 96449507, 289348521]

約数ペア:

[(1, 289348521), (3, 96449507), (7, 41335503), (11, 26304411), (21, 13778501), (33, 8768137), (41, 7057281), (77, 3757773), (123, 2352427), (137, 2112033), (223, 1297527), (231, 1252591), (287, 1008183), (411, 704011), (451, 641571), (669, 432509), (861, 336061), (959, 301719), (1353, 213857), (1507, 192003), (1561, 185361), (2453, 117957), (2877, 100573), (3157, 91653), (4521, 64001), (4683, 61787), (5617, 51513), (7359, 39319), (9143, 31647), (9471, 30551), (10549, 27429), (16851, 17171)]