25639719

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{307}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 40567296

約数和(自身を除く): 14927577

約数列:

[1, 3, 7, 21, 41, 97, 123, 287, 291, 307, 679, 861, 921, 2037, 2149, 3977, 6447, 11931, 12587, 27839, 29779, 37761, 83517, 88109, 89337, 208453, 264327, 625359, 1220939, 3662817, 8546573, 25639719]

約数ペア:

[(1, 25639719), (3, 8546573), (7, 3662817), (21, 1220939), (41, 625359), (97, 264327), (123, 208453), (287, 89337), (291, 88109), (307, 83517), (679, 37761), (861, 29779), (921, 27839), (2037, 12587), (2149, 11931), (3977, 6447)]