21256929190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{303670417}}^1$

素因数の和:303670431

約数の個数: 16

約数和(自身を含む): 43728540192

約数和(自身を除く): 22471611002

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 303670417, 607340834, 1518352085, 2125692919, 3036704170, 4251385838, 10628464595, 21256929190]

約数ペア:

[(1, 21256929190), (2, 10628464595), (5, 4251385838), (7, 3036704170), (10, 2125692919), (14, 1518352085), (35, 607340834), (70, 303670417)]