20664693

素因数分解:

$3^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3527}}^1$

素因数の和:3574

約数の個数: 32

約数和(自身を含む): 36126720

約数和(自身を除く): 15462027

約数列:

[1, 3, 7, 9, 21, 27, 31, 63, 93, 189, 217, 279, 651, 837, 1953, 3527, 5859, 10581, 24689, 31743, 74067, 95229, 109337, 222201, 328011, 666603, 765359, 984033, 2296077, 2952099, 6888231, 20664693]

約数ペア:

[(1, 20664693), (3, 6888231), (7, 2952099), (9, 2296077), (21, 984033), (27, 765359), (31, 666603), (63, 328011), (93, 222201), (189, 109337), (217, 95229), (279, 74067), (651, 31743), (837, 24689), (1953, 10581), (3527, 5859)]