21479288

素因数分解:

$2^3\times {\mathrm{397}}^1\times {\mathrm{6763}}^1$

素因数の和:7166

約数の個数: 16

約数和(自身を含む): 40381080

約数和(自身を除く): 18901792

約数列:

[1, 2, 4, 8, 397, 794, 1588, 3176, 6763, 13526, 27052, 54104, 2684911, 5369822, 10739644, 21479288]

約数ペア:

[(1, 21479288), (2, 10739644), (4, 5369822), (8, 2684911), (397, 54104), (794, 27052), (1588, 13526), (3176, 6763)]