19131875

素因数分解:

$5^4\times 7^1\times {\mathrm{4373}}^1$

素因数の和:4400

約数の個数: 20

約数和(自身を含む): 27328752

約数和(自身を除く): 8196877

約数列:

[1, 5, 7, 25, 35, 125, 175, 625, 875, 4373, 4375, 21865, 30611, 109325, 153055, 546625, 765275, 2733125, 3826375, 19131875]

約数ペア:

[(1, 19131875), (5, 3826375), (7, 2733125), (25, 765275), (35, 546625), (125, 153055), (175, 109325), (625, 30611), (875, 21865), (4373, 4375)]