21144688

素因数分解:

$2^4\times {\mathrm{281}}^1\times {\mathrm{4703}}^1$

素因数の和:4992

約数の個数: 20

約数和(自身を含む): 41122368

約数和(自身を除く): 19977680

約数列:

[1, 2, 4, 8, 16, 281, 562, 1124, 2248, 4496, 4703, 9406, 18812, 37624, 75248, 1321543, 2643086, 5286172, 10572344, 21144688]

約数ペア:

[(1, 21144688), (2, 10572344), (4, 5286172), (8, 2643086), (16, 1321543), (281, 75248), (562, 37624), (1124, 18812), (2248, 9406), (4496, 4703)]