21697533

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{733}}^1$

素因数の和:786

約数の個数: 48

約数和(自身を含む): 38473344

約数和(自身を除く): 16775811

約数列:

[1, 3, 9, 11, 13, 23, 33, 39, 69, 99, 117, 143, 207, 253, 299, 429, 733, 759, 897, 1287, 2199, 2277, 2691, 3289, 6597, 8063, 9529, 9867, 16859, 24189, 28587, 29601, 50577, 72567, 85761, 104819, 151731, 185449, 219167, 314457, 556347, 657501, 943371, 1669041, 1972503, 2410837, 7232511, 21697533]

約数ペア:

[(1, 21697533), (3, 7232511), (9, 2410837), (11, 1972503), (13, 1669041), (23, 943371), (33, 657501), (39, 556347), (69, 314457), (99, 219167), (117, 185449), (143, 151731), (207, 104819), (253, 85761), (299, 72567), (429, 50577), (733, 29601), (759, 28587), (897, 24189), (1287, 16859), (2199, 9867), (2277, 9529), (2691, 8063), (3289, 6597)]