21131159511

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{61}}^1\times {\mathrm{5189}}^1$

素因数の和:5305

約数の個数: 96

約数和(自身を含む): 37934000640

約数和(自身を除く): 16802841129

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 61, 77, 119, 183, 187, 231, 289, 357, 427, 561, 671, 867, 1037, 1281, 1309, 2013, 2023, 3111, 3179, 3927, 4697, 5189, 6069, 7259, 9537, 11407, 14091, 15567, 17629, 21777, 22253, 34221, 36323, 52887, 57079, 66759, 79849, 88213, 108969, 123403, 171237, 193919, 239547, 264639, 316529, 370209, 399553, 581757, 617491, 949587, 970343, 1198659, 1357433, 1499621, 1852473, 2215703, 2911029, 3481819, 4072299, 4498863, 5380993, 6647109, 6792401, 10445457, 10497347, 16142979, 16495831, 20377203, 24372733, 31492041, 37666951, 49487493, 59190923, 73118199, 91476881, 113000853, 115470817, 177572769, 274430643, 346412451, 414336461, 640338167, 1006245691, 1243009383, 1921014501, 3018737073, 7043719837, 21131159511]

約数ペア:

[(1, 21131159511), (3, 7043719837), (7, 3018737073), (11, 1921014501), (17, 1243009383), (21, 1006245691), (33, 640338167), (51, 414336461), (61, 346412451), (77, 274430643), (119, 177572769), (183, 115470817), (187, 113000853), (231, 91476881), (289, 73118199), (357, 59190923), (427, 49487493), (561, 37666951), (671, 31492041), (867, 24372733), (1037, 20377203), (1281, 16495831), (1309, 16142979), (2013, 10497347), (2023, 10445457), (3111, 6792401), (3179, 6647109), (3927, 5380993), (4697, 4498863), (5189, 4072299), (6069, 3481819), (7259, 2911029), (9537, 2215703), (11407, 1852473), (14091, 1499621), (15567, 1357433), (17629, 1198659), (21777, 970343), (22253, 949587), (34221, 617491), (36323, 581757), (52887, 399553), (57079, 370209), (66759, 316529), (79849, 264639), (88213, 239547), (108969, 193919), (123403, 171237)]