21080055

素因数分解:

$3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{12893}}^1$

素因数の和:13010

約数の個数: 16

約数和(自身を含む): 34040160

約数和(自身を除く): 12960105

約数列:

[1, 3, 5, 15, 109, 327, 545, 1635, 12893, 38679, 64465, 193395, 1405337, 4216011, 7026685, 21080055]

約数ペア:

[(1, 21080055), (3, 7026685), (5, 4216011), (15, 1405337), (109, 193395), (327, 64465), (545, 38679), (1635, 12893)]