21513864

素因数分解:

$2^3\times 3^1\times {\mathrm{139}}^1\times {\mathrm{6449}}^1$

素因数の和:6597

約数の個数: 32

約数和(自身を含む): 54180000

約数和(自身を除く): 32666136

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 139, 278, 417, 556, 834, 1112, 1668, 3336, 6449, 12898, 19347, 25796, 38694, 51592, 77388, 154776, 896411, 1792822, 2689233, 3585644, 5378466, 7171288, 10756932, 21513864]

約数ペア:

[(1, 21513864), (2, 10756932), (3, 7171288), (4, 5378466), (6, 3585644), (8, 2689233), (12, 1792822), (24, 896411), (139, 154776), (278, 77388), (417, 51592), (556, 38694), (834, 25796), (1112, 19347), (1668, 12898), (3336, 6449)]