19387815

素因数分解:

$3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{193}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 32200896

約数和(自身を除く): 12813081

約数列:

[1, 3, 5, 15, 37, 111, 181, 185, 193, 543, 555, 579, 905, 965, 2715, 2895, 6697, 7141, 20091, 21423, 33485, 34933, 35705, 100455, 104799, 107115, 174665, 523995, 1292521, 3877563, 6462605, 19387815]

約数ペア:

[(1, 19387815), (3, 6462605), (5, 3877563), (15, 1292521), (37, 523995), (111, 174665), (181, 107115), (185, 104799), (193, 100455), (543, 35705), (555, 34933), (579, 33485), (905, 21423), (965, 20091), (2715, 7141), (2895, 6697)]