19999532

素因数分解:

$2^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{3203}}^1$

素因数の和:3437

約数の個数: 24

約数和(自身を含む): 40190976

約数和(自身を除く): 20191444

約数列:

[1, 2, 4, 7, 14, 28, 223, 446, 892, 1561, 3122, 3203, 6244, 6406, 12812, 22421, 44842, 89684, 714269, 1428538, 2857076, 4999883, 9999766, 19999532]

約数ペア:

[(1, 19999532), (2, 9999766), (4, 4999883), (7, 2857076), (14, 1428538), (28, 714269), (223, 89684), (446, 44842), (892, 22421), (1561, 12812), (3122, 6406), (3203, 6244)]