17939885

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{607}}^1$

素因数の和:892

約数の個数: 16

約数和(自身を含む): 22588416

約数和(自身を除く): 4648531

約数列:

[1, 5, 23, 115, 257, 607, 1285, 3035, 5911, 13961, 29555, 69805, 155999, 779995, 3587977, 17939885]

約数ペア:

[(1, 17939885), (5, 3587977), (23, 779995), (115, 155999), (257, 69805), (607, 29555), (1285, 13961), (3035, 5911)]