20356315

素因数分解:

$5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{4373}}^1$

素因数の和:4411

約数の個数: 24

約数和(自身を含む): 29918160

約数和(自身を除く): 9561845

約数列:

[1, 5, 7, 19, 35, 49, 95, 133, 245, 665, 931, 4373, 4655, 21865, 30611, 83087, 153055, 214277, 415435, 581609, 1071385, 2908045, 4071263, 20356315]

約数ペア:

[(1, 20356315), (5, 4071263), (7, 2908045), (19, 1071385), (35, 581609), (49, 415435), (95, 214277), (133, 153055), (245, 83087), (665, 30611), (931, 21865), (4373, 4655)]