18053217

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:147

約数の個数: 72

約数和(自身を含む): 33860736

約数和(自身を除く): 15807519

約数列:

[1, 3, 7, 9, 13, 21, 39, 47, 49, 63, 67, 91, 117, 141, 147, 201, 273, 329, 423, 441, 469, 603, 611, 637, 819, 871, 987, 1407, 1833, 1911, 2303, 2613, 2961, 3149, 3283, 4221, 4277, 5499, 5733, 6097, 6909, 7839, 9447, 9849, 12831, 18291, 20727, 22043, 28341, 29547, 29939, 38493, 40937, 42679, 54873, 66129, 89817, 122811, 128037, 154301, 198387, 269451, 286559, 368433, 384111, 462903, 859677, 1388709, 2005913, 2579031, 6017739, 18053217]

約数ペア:

[(1, 18053217), (3, 6017739), (7, 2579031), (9, 2005913), (13, 1388709), (21, 859677), (39, 462903), (47, 384111), (49, 368433), (63, 286559), (67, 269451), (91, 198387), (117, 154301), (141, 128037), (147, 122811), (201, 89817), (273, 66129), (329, 54873), (423, 42679), (441, 40937), (469, 38493), (603, 29939), (611, 29547), (637, 28341), (819, 22043), (871, 20727), (987, 18291), (1407, 12831), (1833, 9849), (1911, 9447), (2303, 7839), (2613, 6909), (2961, 6097), (3149, 5733), (3283, 5499), (4221, 4277)]