18997215

素因数分解:

$3^1\times 5^1\times {\mathrm{541}}^1\times {\mathrm{2341}}^1$

素因数の和:2890

約数の個数: 16

約数和(自身を含む): 30464736

約数和(自身を除く): 11467521

約数列:

[1, 3, 5, 15, 541, 1623, 2341, 2705, 7023, 8115, 11705, 35115, 1266481, 3799443, 6332405, 18997215]

約数ペア:

[(1, 18997215), (3, 6332405), (5, 3799443), (15, 1266481), (541, 35115), (1623, 11705), (2341, 8115), (2705, 7023)]