20009353

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 26191872

約数和(自身を除く): 6182519

約数列:

[1, 7, 13, 31, 41, 91, 173, 217, 287, 403, 533, 1211, 1271, 2249, 2821, 3731, 5363, 7093, 8897, 15743, 16523, 37541, 49651, 69719, 92209, 115661, 219883, 488033, 645463, 1539181, 2858479, 20009353]

約数ペア:

[(1, 20009353), (7, 2858479), (13, 1539181), (31, 645463), (41, 488033), (91, 219883), (173, 115661), (217, 92209), (287, 69719), (403, 49651), (533, 37541), (1211, 16523), (1271, 15743), (2249, 8897), (2821, 7093), (3731, 5363)]