16581316

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{647}}^1$

素因数の和:843

約数の個数: 24

約数和(自身を含む): 29937600

約数和(自身を除く): 13356284

約数列:

[1, 2, 4, 43, 86, 149, 172, 298, 596, 647, 1294, 2588, 6407, 12814, 25628, 27821, 55642, 96403, 111284, 192806, 385612, 4145329, 8290658, 16581316]

約数ペア:

[(1, 16581316), (2, 8290658), (4, 4145329), (43, 385612), (86, 192806), (149, 111284), (172, 96403), (298, 55642), (596, 27821), (647, 25628), (1294, 12814), (2588, 6407)]