13928005

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{4373}}^1$

素因数の和:4405

約数の個数: 24

約数和(自身を含む): 20942712

約数和(自身を除く): 7014707

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 4373, 21865, 30611, 56849, 153055, 214277, 284245, 397943, 1071385, 1989715, 2785601, 13928005]

約数ペア:

[(1, 13928005), (5, 2785601), (7, 1989715), (13, 1071385), (35, 397943), (49, 284245), (65, 214277), (91, 153055), (245, 56849), (455, 30611), (637, 21865), (3185, 4373)]