20643872

素因数分解:

$2^5\times {\mathrm{167}}^1\times {\mathrm{3863}}^1$

素因数の和:4040

約数の個数: 24

約数和(自身を含む): 40896576

約数和(自身を除く): 20252704

約数列:

[1, 2, 4, 8, 16, 32, 167, 334, 668, 1336, 2672, 3863, 5344, 7726, 15452, 30904, 61808, 123616, 645121, 1290242, 2580484, 5160968, 10321936, 20643872]

約数ペア:

[(1, 20643872), (2, 10321936), (4, 5160968), (8, 2580484), (16, 1290242), (32, 645121), (167, 123616), (334, 61808), (668, 30904), (1336, 15452), (2672, 7726), (3863, 5344)]