19787812

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{3433}}^1$

素因数の和:3579

約数の個数: 24

約数和(自身を含む): 38076192

約数和(自身を除く): 18288380

約数列:

[1, 2, 4, 11, 22, 44, 131, 262, 524, 1441, 2882, 3433, 5764, 6866, 13732, 37763, 75526, 151052, 449723, 899446, 1798892, 4946953, 9893906, 19787812]

約数ペア:

[(1, 19787812), (2, 9893906), (4, 4946953), (11, 1798892), (22, 899446), (44, 449723), (131, 151052), (262, 75526), (524, 37763), (1441, 13732), (2882, 6866), (3433, 5764)]