21116936

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{71341}}^1$

素因数の和:71384

約数の個数: 16

約数和(自身を含む): 40664940

約数和(自身を除く): 19548004

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 71341, 142682, 285364, 570728, 2639617, 5279234, 10558468, 21116936]

約数ペア:

[(1, 21116936), (2, 10558468), (4, 5279234), (8, 2639617), (37, 570728), (74, 285364), (148, 142682), (296, 71341)]