20121595

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{887}}^1$

素因数の和:1254

約数の個数: 16

約数和(自身を含む): 26107200

約数和(自身を除く): 5985605

約数列:

[1, 5, 13, 65, 349, 887, 1745, 4435, 4537, 11531, 22685, 57655, 309563, 1547815, 4024319, 20121595]

約数ペア:

[(1, 20121595), (5, 4024319), (13, 1547815), (65, 309563), (349, 57655), (887, 22685), (1745, 11531), (4435, 4537)]