28217956

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{7643}}^1$

素因数の和:7731

約数の個数: 24

約数和(自身を含む): 53936064

約数和(自身を除く): 25718108

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1846, 3692, 7643, 15286, 30572, 99359, 198718, 397436, 542653, 1085306, 2170612, 7054489, 14108978, 28217956]

約数ペア:

[(1, 28217956), (2, 14108978), (4, 7054489), (13, 2170612), (26, 1085306), (52, 542653), (71, 397436), (142, 198718), (284, 99359), (923, 30572), (1846, 15286), (3692, 7643)]