9881788

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2539}}^1$

素因数の和:2689

約数の個数: 24

約数和(自身を含む): 19913600

約数和(自身を除く): 10031812

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 2539, 3892, 5078, 10156, 17773, 35546, 71092, 352921, 705842, 1411684, 2470447, 4940894, 9881788]

約数ペア:

[(1, 9881788), (2, 4940894), (4, 2470447), (7, 1411684), (14, 705842), (28, 352921), (139, 71092), (278, 35546), (556, 17773), (973, 10156), (1946, 5078), (2539, 3892)]