20647256

素因数分解:

$2^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{5503}}^1$

素因数の和:5583

約数の個数: 32

約数和(自身を含む): 44912640

約数和(自身を除く): 24265384

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 67, 134, 268, 469, 536, 938, 1876, 3752, 5503, 11006, 22012, 38521, 44024, 77042, 154084, 308168, 368701, 737402, 1474804, 2580907, 2949608, 5161814, 10323628, 20647256]

約数ペア:

[(1, 20647256), (2, 10323628), (4, 5161814), (7, 2949608), (8, 2580907), (14, 1474804), (28, 737402), (56, 368701), (67, 308168), (134, 154084), (268, 77042), (469, 44024), (536, 38521), (938, 22012), (1876, 11006), (3752, 5503)]