20711638

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{283}}^1$

素因数の和:388

約数の個数: 32

約数和(自身を含む): 34189056

約数和(自身を除く): 13477418

約数列:

[1, 2, 23, 37, 43, 46, 74, 86, 283, 566, 851, 989, 1591, 1702, 1978, 3182, 6509, 10471, 12169, 13018, 20942, 24338, 36593, 73186, 240833, 279887, 450253, 481666, 559774, 900506, 10355819, 20711638]

約数ペア:

[(1, 20711638), (2, 10355819), (23, 900506), (37, 559774), (43, 481666), (46, 450253), (74, 279887), (86, 240833), (283, 73186), (566, 36593), (851, 24338), (989, 20942), (1591, 13018), (1702, 12169), (1978, 10471), (3182, 6509)]