19771568

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{9433}}^1$

素因数の和:9572

約数の個数: 20

約数和(自身を含む): 38603928

約数和(自身を除く): 18832360

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 9433, 18866, 37732, 75464, 150928, 1235723, 2471446, 4942892, 9885784, 19771568]

約数ペア:

[(1, 19771568), (2, 9885784), (4, 4942892), (8, 2471446), (16, 1235723), (131, 150928), (262, 75464), (524, 37732), (1048, 18866), (2096, 9433)]