20973701

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{5087}}^1$

素因数の和:5144

約数の個数: 16

約数和(自身を含む): 26050560

約数和(自身を除く): 5076859

約数列:

[1, 7, 19, 31, 133, 217, 589, 4123, 5087, 35609, 96653, 157697, 676571, 1103879, 2996243, 20973701]

約数ペア:

[(1, 20973701), (7, 2996243), (19, 1103879), (31, 676571), (133, 157697), (217, 96653), (589, 35609), (4123, 5087)]