21577185

素因数分解:

$3^5\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:129

約数の個数: 96

約数和(自身を含む): 46126080

約数和(自身を除く): 24548895

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 43, 45, 59, 63, 81, 105, 129, 135, 177, 189, 215, 243, 295, 301, 315, 387, 405, 413, 531, 567, 645, 885, 903, 945, 1161, 1215, 1239, 1505, 1593, 1701, 1935, 2065, 2537, 2655, 2709, 2835, 3483, 3717, 4515, 4779, 5805, 6195, 7611, 7965, 8127, 8505, 10449, 11151, 12685, 13545, 14337, 17415, 17759, 18585, 22833, 23895, 24381, 33453, 38055, 40635, 52245, 53277, 55755, 68499, 71685, 73143, 88795, 100359, 114165, 121905, 159831, 167265, 205497, 266385, 342495, 365715, 479493, 501795, 616491, 799155, 1027485, 1438479, 2397465, 3082455, 4315437, 7192395, 21577185]

約数ペア:

[(1, 21577185), (3, 7192395), (5, 4315437), (7, 3082455), (9, 2397465), (15, 1438479), (21, 1027485), (27, 799155), (35, 616491), (43, 501795), (45, 479493), (59, 365715), (63, 342495), (81, 266385), (105, 205497), (129, 167265), (135, 159831), (177, 121905), (189, 114165), (215, 100359), (243, 88795), (295, 73143), (301, 71685), (315, 68499), (387, 55755), (405, 53277), (413, 52245), (531, 40635), (567, 38055), (645, 33453), (885, 24381), (903, 23895), (945, 22833), (1161, 18585), (1215, 17759), (1239, 17415), (1505, 14337), (1593, 13545), (1701, 12685), (1935, 11151), (2065, 10449), (2537, 8505), (2655, 8127), (2709, 7965), (2835, 7611), (3483, 6195), (3717, 5805), (4515, 4779)]