19001915

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{2851}}^1$

素因数の和:2930

約数の個数: 16

約数和(自身を含む): 24093696

約数和(自身を除く): 5091781

約数列:

[1, 5, 31, 43, 155, 215, 1333, 2851, 6665, 14255, 88381, 122593, 441905, 612965, 3800383, 19001915]

約数ペア:

[(1, 19001915), (5, 3800383), (31, 612965), (43, 441905), (155, 122593), (215, 88381), (1333, 14255), (2851, 6665)]