20403766341

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{549863}}^1$

素因数の和:549926

約数の個数: 48

約数和(自身を含む): 36598947840

約数和(自身を除く): 16195181499

約数列:

[1, 3, 7, 9, 19, 21, 31, 57, 63, 93, 133, 171, 217, 279, 399, 589, 651, 1197, 1767, 1953, 4123, 5301, 12369, 37107, 549863, 1649589, 3849041, 4948767, 10447397, 11547123, 17045753, 31342191, 34641369, 51137259, 73131779, 94026573, 119320271, 153411777, 219395337, 323869307, 357960813, 658186011, 971607921, 1073882439, 2267085149, 2914823763, 6801255447, 20403766341]

約数ペア:

[(1, 20403766341), (3, 6801255447), (7, 2914823763), (9, 2267085149), (19, 1073882439), (21, 971607921), (31, 658186011), (57, 357960813), (63, 323869307), (93, 219395337), (133, 153411777), (171, 119320271), (217, 94026573), (279, 73131779), (399, 51137259), (589, 34641369), (651, 31342191), (1197, 17045753), (1767, 11547123), (1953, 10447397), (4123, 4948767), (5301, 3849041), (12369, 1649589), (37107, 549863)]