21059570

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{300851}}^1$

素因数の和:300865

約数の個数: 16

約数和(自身を含む): 43322688

約数和(自身を除く): 22263118

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 300851, 601702, 1504255, 2105957, 3008510, 4211914, 10529785, 21059570]

約数ペア:

[(1, 21059570), (2, 10529785), (5, 4211914), (7, 3008510), (10, 2105957), (14, 1504255), (35, 601702), (70, 300851)]