19517361

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{929}}^1$

素因数の和:1128

約数の個数: 16

約数和(自身を含む): 26784000

約数和(自身を除く): 7266639

約数列:

[1, 3, 47, 141, 149, 447, 929, 2787, 7003, 21009, 43663, 130989, 138421, 415263, 6505787, 19517361]

約数ペア:

[(1, 19517361), (3, 6505787), (47, 415263), (141, 138421), (149, 130989), (447, 43663), (929, 21009), (2787, 7003)]