21613195

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1\times {\mathrm{433}}^1$

素因数の和:654

約数の個数: 16

約数和(自身を含む): 26560800

約数和(自身を除く): 4947605

約数列:

[1, 5, 67, 149, 335, 433, 745, 2165, 9983, 29011, 49915, 64517, 145055, 322585, 4322639, 21613195]

約数ペア:

[(1, 21613195), (5, 4322639), (67, 322585), (149, 145055), (335, 64517), (433, 49915), (745, 29011), (2165, 9983)]