21770645

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{4999}}^1$

素因数の和:5084

約数の個数: 16

約数和(自身を含む): 28560000

約数和(自身を除く): 6789355

約数列:

[1, 5, 13, 65, 67, 335, 871, 4355, 4999, 24995, 64987, 324935, 334933, 1674665, 4354129, 21770645]

約数ペア:

[(1, 21770645), (5, 4354129), (13, 1674665), (65, 334933), (67, 324935), (335, 64987), (871, 24995), (4355, 4999)]