20891556

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{82903}}^1$

素因数の和:82920

約数の個数: 36

約数和(自身を含む): 60354112

約数和(自身を除く): 39462556

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 82903, 165806, 248709, 331612, 497418, 580321, 746127, 994836, 1160642, 1492254, 1740963, 2321284, 2984508, 3481926, 5222889, 6963852, 10445778, 20891556]

約数ペア:

[(1, 20891556), (2, 10445778), (3, 6963852), (4, 5222889), (6, 3481926), (7, 2984508), (9, 2321284), (12, 1740963), (14, 1492254), (18, 1160642), (21, 994836), (28, 746127), (36, 580321), (42, 497418), (63, 331612), (84, 248709), (126, 165806), (252, 82903)]