18919012

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{4861}}^1$

素因数の和:5011

約数の個数: 24

約数和(自身を含む): 38118080

約数和(自身を除く): 19199068

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 4861, 9722, 19444, 34027, 68054, 136108, 675679, 1351358, 2702716, 4729753, 9459506, 18919012]

約数ペア:

[(1, 18919012), (2, 9459506), (4, 4729753), (7, 2702716), (14, 1351358), (28, 675679), (139, 136108), (278, 68054), (556, 34027), (973, 19444), (1946, 9722), (3892, 4861)]