18821439

素因数分解:

$3^2\times 7^4\times {\mathrm{13}}^1\times {\mathrm{67}}^1$

素因数の和:114

約数の個数: 60

約数和(自身を含む): 34665176

約数和(自身を除く): 15843737

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 67, 91, 117, 147, 201, 273, 343, 441, 469, 603, 637, 819, 871, 1029, 1407, 1911, 2401, 2613, 3087, 3283, 4221, 4459, 5733, 6097, 7203, 7839, 9849, 13377, 18291, 21609, 22981, 29547, 31213, 40131, 42679, 54873, 68943, 93639, 128037, 160867, 206829, 280917, 298753, 384111, 482601, 896259, 1447803, 2091271, 2688777, 6273813, 18821439]

約数ペア:

[(1, 18821439), (3, 6273813), (7, 2688777), (9, 2091271), (13, 1447803), (21, 896259), (39, 482601), (49, 384111), (63, 298753), (67, 280917), (91, 206829), (117, 160867), (147, 128037), (201, 93639), (273, 68943), (343, 54873), (441, 42679), (469, 40131), (603, 31213), (637, 29547), (819, 22981), (871, 21609), (1029, 18291), (1407, 13377), (1911, 9849), (2401, 7839), (2613, 7203), (3087, 6097), (3283, 5733), (4221, 4459)]