20568657

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{8581}}^1$

素因数の和:8648

約数の個数: 16

約数和(自身を含む): 29659392

約数和(自身を除く): 9090735

約数列:

[1, 3, 17, 47, 51, 141, 799, 2397, 8581, 25743, 145877, 403307, 437631, 1209921, 6856219, 20568657]

約数ペア:

[(1, 20568657), (3, 6856219), (17, 1209921), (47, 437631), (51, 403307), (141, 145877), (799, 25743), (2397, 8581)]