20538892

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{577}}^1\times {\mathrm{809}}^1$

素因数の和:1401

約数の個数: 24

約数和(自身を含む): 39327120

約数和(自身を除く): 18788228

約数列:

[1, 2, 4, 11, 22, 44, 577, 809, 1154, 1618, 2308, 3236, 6347, 8899, 12694, 17798, 25388, 35596, 466793, 933586, 1867172, 5134723, 10269446, 20538892]

約数ペア:

[(1, 20538892), (2, 10269446), (4, 5134723), (11, 1867172), (22, 933586), (44, 466793), (577, 35596), (809, 25388), (1154, 17798), (1618, 12694), (2308, 8899), (3236, 6347)]