20397195

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1$

素因数の和:341

約数の個数: 96

約数和(自身を含む): 46230912

約数和(自身を除く): 25833717

約数列:

[1, 3, 5, 7, 9, 13, 15, 17, 21, 35, 39, 45, 51, 63, 65, 85, 91, 105, 117, 119, 153, 195, 221, 255, 273, 293, 315, 357, 455, 585, 595, 663, 765, 819, 879, 1071, 1105, 1365, 1465, 1547, 1785, 1989, 2051, 2637, 3315, 3809, 4095, 4395, 4641, 4981, 5355, 6153, 7735, 9945, 10255, 11427, 13185, 13923, 14943, 18459, 19045, 23205, 24905, 26663, 30765, 34281, 34867, 44829, 57135, 64753, 69615, 74715, 79989, 92295, 104601, 133315, 171405, 174335, 194259, 224145, 239967, 313803, 323765, 399945, 453271, 523005, 582777, 971295, 1199835, 1359813, 1569015, 2266355, 2913885, 4079439, 6799065, 20397195]

約数ペア:

[(1, 20397195), (3, 6799065), (5, 4079439), (7, 2913885), (9, 2266355), (13, 1569015), (15, 1359813), (17, 1199835), (21, 971295), (35, 582777), (39, 523005), (45, 453271), (51, 399945), (63, 323765), (65, 313803), (85, 239967), (91, 224145), (105, 194259), (117, 174335), (119, 171405), (153, 133315), (195, 104601), (221, 92295), (255, 79989), (273, 74715), (293, 69615), (315, 64753), (357, 57135), (455, 44829), (585, 34867), (595, 34281), (663, 30765), (765, 26663), (819, 24905), (879, 23205), (1071, 19045), (1105, 18459), (1365, 14943), (1465, 13923), (1547, 13185), (1785, 11427), (1989, 10255), (2051, 9945), (2637, 7735), (3315, 6153), (3809, 5355), (4095, 4981), (4395, 4641)]