19924985

素因数分解:

$5^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{691}}^1$

素因数の和:848

約数の個数: 16

約数和(自身を含む): 24579840

約数和(自身を除く): 4654855

約数列:

[1, 5, 73, 79, 365, 395, 691, 3455, 5767, 28835, 50443, 54589, 252215, 272945, 3984997, 19924985]

約数ペア:

[(1, 19924985), (5, 3984997), (73, 272945), (79, 252215), (365, 54589), (395, 50443), (691, 28835), (3455, 5767)]