19882499

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^2$

素因数の和:207

約数の個数: 24

約数和(自身を含む): 25415712

約数和(自身を除く): 5533213

約数列:

[1, 7, 13, 41, 73, 91, 287, 511, 533, 949, 2993, 3731, 5329, 6643, 20951, 37303, 38909, 69277, 218489, 272363, 484939, 1529423, 2840357, 19882499]

約数ペア:

[(1, 19882499), (7, 2840357), (13, 1529423), (41, 484939), (73, 272363), (91, 218489), (287, 69277), (511, 38909), (533, 37303), (949, 20951), (2993, 6643), (3731, 5329)]