20041788

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{128473}}^1$

素因数の和:128493

約数の個数: 24

約数和(自身を含む): 50361808

約数和(自身を除く): 30320020

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 128473, 256946, 385419, 513892, 770838, 1541676, 1670149, 3340298, 5010447, 6680596, 10020894, 20041788]

約数ペア:

[(1, 20041788), (2, 10020894), (3, 6680596), (4, 5010447), (6, 3340298), (12, 1670149), (13, 1541676), (26, 770838), (39, 513892), (52, 385419), (78, 256946), (156, 128473)]