19983872

素因数分解:

$2^9\times {\mathrm{23}}^1\times {\mathrm{1697}}^1$

素因数の和:1738

約数の個数: 40

約数和(自身を含む): 41689296

約数和(自身を除く): 21705424

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 128, 184, 256, 368, 512, 736, 1472, 1697, 2944, 3394, 5888, 6788, 11776, 13576, 27152, 39031, 54304, 78062, 108608, 156124, 217216, 312248, 434432, 624496, 868864, 1248992, 2497984, 4995968, 9991936, 19983872]

約数ペア:

[(1, 19983872), (2, 9991936), (4, 4995968), (8, 2497984), (16, 1248992), (23, 868864), (32, 624496), (46, 434432), (64, 312248), (92, 217216), (128, 156124), (184, 108608), (256, 78062), (368, 54304), (512, 39031), (736, 27152), (1472, 13576), (1697, 11776), (2944, 6788), (3394, 5888)]