12878919

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1$

素因数の和:289

約数の個数: 40

約数和(自身を含む): 20815872

約数和(自身を除く): 7936953

約数列:

[1, 3, 9, 23, 27, 31, 69, 81, 93, 207, 223, 279, 621, 669, 713, 837, 1863, 2007, 2139, 2511, 5129, 6021, 6417, 6913, 15387, 18063, 19251, 20739, 46161, 57753, 62217, 138483, 158999, 186651, 415449, 476997, 559953, 1430991, 4292973, 12878919]

約数ペア:

[(1, 12878919), (3, 4292973), (9, 1430991), (23, 559953), (27, 476997), (31, 415449), (69, 186651), (81, 158999), (93, 138483), (207, 62217), (223, 57753), (279, 46161), (621, 20739), (669, 19251), (713, 18063), (837, 15387), (1863, 6913), (2007, 6417), (2139, 6021), (2511, 5129)]