20509668

素因数分解:

$2^2\times 3^2\times {\mathrm{569713}}^1$

素因数の和:569723

約数の個数: 18

約数和(自身を含む): 51843974

約数和(自身を除く): 31334306

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 569713, 1139426, 1709139, 2278852, 3418278, 5127417, 6836556, 10254834, 20509668]

約数ペア:

[(1, 20509668), (2, 10254834), (3, 6836556), (4, 5127417), (6, 3418278), (9, 2278852), (12, 1709139), (18, 1139426), (36, 569713)]