19289667

素因数分解:

$3^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{409}}^1$

素因数の和:690

約数の個数: 16

約数和(自身を含む): 26240000

約数和(自身を除く): 6950333

約数列:

[1, 3, 79, 199, 237, 409, 597, 1227, 15721, 32311, 47163, 81391, 96933, 244173, 6429889, 19289667]

約数ペア:

[(1, 19289667), (3, 6429889), (79, 244173), (199, 96933), (237, 81391), (409, 47163), (597, 32311), (1227, 15721)]