21000545442

素因数分解:

$2^1\times 3^2\times {\mathrm{149}}^1\times {\mathrm{389}}^1\times {\mathrm{20129}}^1$

素因数の和:20675

約数の個数: 48

約数和(自身を含む): 45926595000

約数和(自身を除く): 24926049558

約数列:

[1, 2, 3, 6, 9, 18, 149, 298, 389, 447, 778, 894, 1167, 1341, 2334, 2682, 3501, 7002, 20129, 40258, 57961, 60387, 115922, 120774, 173883, 181161, 347766, 362322, 521649, 1043298, 2999221, 5998442, 7830181, 8997663, 15660362, 17995326, 23490543, 26992989, 46981086, 53985978, 70471629, 140943258, 1166696969, 2333393938, 3500090907, 7000181814, 10500272721, 21000545442]

約数ペア:

[(1, 21000545442), (2, 10500272721), (3, 7000181814), (6, 3500090907), (9, 2333393938), (18, 1166696969), (149, 140943258), (298, 70471629), (389, 53985978), (447, 46981086), (778, 26992989), (894, 23490543), (1167, 17995326), (1341, 15660362), (2334, 8997663), (2682, 7830181), (3501, 5998442), (7002, 2999221), (20129, 1043298), (40258, 521649), (57961, 362322), (60387, 347766), (115922, 181161), (120774, 173883)]