20428788

素因数分解:

$2^2\times 3^1\times {\mathrm{263}}^1\times {\mathrm{6473}}^1$

素因数の和:6743

約数の個数: 24

約数和(自身を含む): 47855808

約数和(自身を除く): 27427020

約数列:

[1, 2, 3, 4, 6, 12, 263, 526, 789, 1052, 1578, 3156, 6473, 12946, 19419, 25892, 38838, 77676, 1702399, 3404798, 5107197, 6809596, 10214394, 20428788]

約数ペア:

[(1, 20428788), (2, 10214394), (3, 6809596), (4, 5107197), (6, 3404798), (12, 1702399), (263, 77676), (526, 38838), (789, 25892), (1052, 19419), (1578, 12946), (3156, 6473)]