20181000007

素因数分解:

$7^2\times {\mathrm{421}}^1\times {\mathrm{978283}}^1$

素因数の和:978718

約数の個数: 12

約数和(自身を含む): 23531643336

約数和(自身を除く): 3350643329

約数列:

[1, 7, 49, 421, 2947, 20629, 978283, 6847981, 47935867, 411857143, 2883000001, 20181000007]

約数ペア:

[(1, 20181000007), (7, 2883000001), (49, 411857143), (421, 47935867), (2947, 6847981), (20629, 978283)]