21238872

素因数分解:

$2^3\times 3^1\times {\mathrm{199}}^1\times {\mathrm{4447}}^1$

素因数の和:4655

約数の個数: 32

約数和(自身を含む): 53376000

約数和(自身を除く): 32137128

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 199, 398, 597, 796, 1194, 1592, 2388, 4447, 4776, 8894, 13341, 17788, 26682, 35576, 53364, 106728, 884953, 1769906, 2654859, 3539812, 5309718, 7079624, 10619436, 21238872]

約数ペア:

[(1, 21238872), (2, 10619436), (3, 7079624), (4, 5309718), (6, 3539812), (8, 2654859), (12, 1769906), (24, 884953), (199, 106728), (398, 53364), (597, 35576), (796, 26682), (1194, 17788), (1592, 13341), (2388, 8894), (4447, 4776)]