55538217

素因数分解:

$3^4\times 7^3\times {\mathrm{1999}}^1$

素因数の和:2032

約数の個数: 40

約数和(自身を含む): 96800000

約数和(自身を除く): 41261783

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 343, 441, 567, 1029, 1323, 1999, 3087, 3969, 5997, 9261, 13993, 17991, 27783, 41979, 53973, 97951, 125937, 161919, 293853, 377811, 685657, 881559, 1133433, 2056971, 2644677, 6170913, 7934031, 18512739, 55538217]

約数ペア:

[(1, 55538217), (3, 18512739), (7, 7934031), (9, 6170913), (21, 2644677), (27, 2056971), (49, 1133433), (63, 881559), (81, 685657), (147, 377811), (189, 293853), (343, 161919), (441, 125937), (567, 97951), (1029, 53973), (1323, 41979), (1999, 27783), (3087, 17991), (3969, 13993), (5997, 9261)]