21441140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{153151}}^1$

素因数の和:153167

約数の個数: 24

約数和(自身を含む): 51459072

約数和(自身を除く): 30017932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 153151, 306302, 612604, 765755, 1072057, 1531510, 2144114, 3063020, 4288228, 5360285, 10720570, 21441140]

約数ペア:

[(1, 21441140), (2, 10720570), (4, 5360285), (5, 4288228), (7, 3063020), (10, 2144114), (14, 1531510), (20, 1072057), (28, 765755), (35, 612604), (70, 306302), (140, 153151)]