20969516

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{263}}^1\times {\mathrm{643}}^1$

素因数の和:941

約数の個数: 24

約数和(自身を含む): 38083584

約数和(自身を除く): 17114068

約数列:

[1, 2, 4, 31, 62, 124, 263, 526, 643, 1052, 1286, 2572, 8153, 16306, 19933, 32612, 39866, 79732, 169109, 338218, 676436, 5242379, 10484758, 20969516]

約数ペア:

[(1, 20969516), (2, 10484758), (4, 5242379), (31, 676436), (62, 338218), (124, 169109), (263, 79732), (526, 39866), (643, 32612), (1052, 19933), (1286, 16306), (2572, 8153)]