21436961

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{461}}^1$

素因数の和:561

約数の個数: 24

約数和(自身を含む): 27282024

約数和(自身を除く): 5845063

約数列:

[1, 7, 13, 49, 73, 91, 461, 511, 637, 949, 3227, 3577, 5993, 6643, 22589, 33653, 41951, 46501, 235571, 293657, 437489, 1648997, 3062423, 21436961]

約数ペア:

[(1, 21436961), (7, 3062423), (13, 1648997), (49, 437489), (73, 293657), (91, 235571), (461, 46501), (511, 41951), (637, 33653), (949, 22589), (3227, 6643), (3577, 5993)]