19781248508

素因数分解:

$2^2\times 7^1\times {\mathrm{1031}}^1\times {\mathrm{685231}}^1$

素因数の和:686273

約数の個数: 24

約数和(自身を含む): 39600927744

約数和(自身を除く): 19819679236

約数列:

[1, 2, 4, 7, 14, 28, 1031, 2062, 4124, 7217, 14434, 28868, 685231, 1370462, 2740924, 4796617, 9593234, 19186468, 706473161, 1412946322, 2825892644, 4945312127, 9890624254, 19781248508]

約数ペア:

[(1, 19781248508), (2, 9890624254), (4, 4945312127), (7, 2825892644), (14, 1412946322), (28, 706473161), (1031, 19186468), (2062, 9593234), (4124, 4796617), (7217, 2740924), (14434, 1370462), (28868, 685231)]