20989456

素因数分解:

$2^4\times {\mathrm{373}}^1\times {\mathrm{3517}}^1$

素因数の和:3898

約数の個数: 20

約数和(自身を含む): 40787692

約数和(自身を除く): 19798236

約数列:

[1, 2, 4, 8, 16, 373, 746, 1492, 2984, 3517, 5968, 7034, 14068, 28136, 56272, 1311841, 2623682, 5247364, 10494728, 20989456]

約数ペア:

[(1, 20989456), (2, 10494728), (4, 5247364), (8, 2623682), (16, 1311841), (373, 56272), (746, 28136), (1492, 14068), (2984, 7034), (3517, 5968)]