1247967

素因数分解:

$3^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:121

約数の個数: 40

約数和(自身を含む): 2230272

約数和(自身を除く): 982305

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 71, 81, 93, 189, 213, 217, 279, 497, 567, 639, 651, 837, 1491, 1917, 1953, 2201, 2511, 4473, 5751, 5859, 6603, 13419, 15407, 17577, 19809, 40257, 46221, 59427, 138663, 178281, 415989, 1247967]

約数ペア:

[(1, 1247967), (3, 415989), (7, 178281), (9, 138663), (21, 59427), (27, 46221), (31, 40257), (63, 19809), (71, 17577), (81, 15407), (93, 13419), (189, 6603), (213, 5859), (217, 5751), (279, 4473), (497, 2511), (567, 2201), (639, 1953), (651, 1917), (837, 1491)]