17992989

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:167

約数の個数: 64

約数和(自身を含む): 32686080

約数和(自身を除く): 14693091

約数列:

[1, 3, 7, 9, 21, 27, 31, 37, 63, 83, 93, 111, 189, 217, 249, 259, 279, 333, 581, 651, 747, 777, 837, 999, 1147, 1743, 1953, 2241, 2331, 2573, 3071, 3441, 5229, 5859, 6993, 7719, 8029, 9213, 10323, 15687, 18011, 21497, 23157, 24087, 27639, 30969, 54033, 64491, 69471, 72261, 82917, 95201, 162099, 193473, 216783, 285603, 486297, 580419, 666407, 856809, 1999221, 2570427, 5997663, 17992989]

約数ペア:

[(1, 17992989), (3, 5997663), (7, 2570427), (9, 1999221), (21, 856809), (27, 666407), (31, 580419), (37, 486297), (63, 285603), (83, 216783), (93, 193473), (111, 162099), (189, 95201), (217, 82917), (249, 72261), (259, 69471), (279, 64491), (333, 54033), (581, 30969), (651, 27639), (747, 24087), (777, 23157), (837, 21497), (999, 18011), (1147, 15687), (1743, 10323), (1953, 9213), (2241, 8029), (2331, 7719), (2573, 6993), (3071, 5859), (3441, 5229)]