20990184

素因数分解:

$2^3\times 3^1\times {\mathrm{397}}^1\times {\mathrm{2203}}^1$

素因数の和:2609

約数の個数: 32

約数和(自身を含む): 52631520

約数和(自身を除く): 31641336

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 397, 794, 1191, 1588, 2203, 2382, 3176, 4406, 4764, 6609, 8812, 9528, 13218, 17624, 26436, 52872, 874591, 1749182, 2623773, 3498364, 5247546, 6996728, 10495092, 20990184]

約数ペア:

[(1, 20990184), (2, 10495092), (3, 6996728), (4, 5247546), (6, 3498364), (8, 2623773), (12, 1749182), (24, 874591), (397, 52872), (794, 26436), (1191, 17624), (1588, 13218), (2203, 9528), (2382, 8812), (3176, 6609), (4406, 4764)]