20810398

素因数分解:

$2^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{1621}}^1$

素因数の和:1768

約数の個数: 24

約数和(自身を含む): 36611784

約数和(自身を除く): 15801386

約数列:

[1, 2, 7, 14, 49, 98, 131, 262, 917, 1621, 1834, 3242, 6419, 11347, 12838, 22694, 79429, 158858, 212351, 424702, 1486457, 2972914, 10405199, 20810398]

約数ペア:

[(1, 20810398), (2, 10405199), (7, 2972914), (14, 1486457), (49, 424702), (98, 212351), (131, 158858), (262, 79429), (917, 22694), (1621, 12838), (1834, 11347), (3242, 6419)]