20940786

素因数分解:

$2^1\times 3^2\times {\mathrm{1009}}^1\times {\mathrm{1153}}^1$

素因数の和:2170

約数の個数: 24

約数和(自身を含む): 45456060

約数和(自身を除く): 24515274

約数列:

[1, 2, 3, 6, 9, 18, 1009, 1153, 2018, 2306, 3027, 3459, 6054, 6918, 9081, 10377, 18162, 20754, 1163377, 2326754, 3490131, 6980262, 10470393, 20940786]

約数ペア:

[(1, 20940786), (2, 10470393), (3, 6980262), (6, 3490131), (9, 2326754), (18, 1163377), (1009, 20754), (1153, 18162), (2018, 10377), (2306, 9081), (3027, 6918), (3459, 6054)]