20898345

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107171}}^1$

素因数の和:107192

約数の個数: 16

約数和(自身を含む): 36009792

約数和(自身を除く): 15111447

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 107171, 321513, 535855, 1393223, 1607565, 4179669, 6966115, 20898345]

約数ペア:

[(1, 20898345), (3, 6966115), (5, 4179669), (13, 1607565), (15, 1393223), (39, 535855), (65, 321513), (195, 107171)]