21409552

素因数分解:

$2^4\times {\mathrm{1087}}^1\times {\mathrm{1231}}^1$

素因数の和:2326

約数の個数: 20

約数和(自身を含む): 41552896

約数和(自身を除く): 20143344

約数列:

[1, 2, 4, 8, 16, 1087, 1231, 2174, 2462, 4348, 4924, 8696, 9848, 17392, 19696, 1338097, 2676194, 5352388, 10704776, 21409552]

約数ペア:

[(1, 21409552), (2, 10704776), (4, 5352388), (8, 2676194), (16, 1338097), (1087, 19696), (1231, 17392), (2174, 9848), (2462, 8696), (4348, 4924)]