20531894

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{4957}}^1$

素因数の和:5087

約数の個数: 16

約数和(自身を含む): 32722800

約数和(自身を除く): 12190906

約数列:

[1, 2, 19, 38, 109, 218, 2071, 4142, 4957, 9914, 94183, 188366, 540313, 1080626, 10265947, 20531894]

約数ペア:

[(1, 20531894), (2, 10265947), (19, 1080626), (38, 540313), (109, 188366), (218, 94183), (2071, 9914), (4142, 4957)]