19653543

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:469

約数の個数: 64

約数和(自身を含む): 37811200

約数和(自身を除く): 18157657

約数列:

[1, 3, 7, 9, 13, 19, 21, 27, 39, 57, 63, 91, 117, 133, 171, 189, 247, 273, 351, 399, 421, 513, 741, 819, 1197, 1263, 1729, 2223, 2457, 2947, 3591, 3789, 5187, 5473, 6669, 7999, 8841, 11367, 15561, 16419, 23997, 26523, 38311, 46683, 49257, 55993, 71991, 79569, 103987, 114933, 147771, 167979, 215973, 311961, 344799, 503937, 727909, 935883, 1034397, 1511811, 2183727, 2807649, 6551181, 19653543]

約数ペア:

[(1, 19653543), (3, 6551181), (7, 2807649), (9, 2183727), (13, 1511811), (19, 1034397), (21, 935883), (27, 727909), (39, 503937), (57, 344799), (63, 311961), (91, 215973), (117, 167979), (133, 147771), (171, 114933), (189, 103987), (247, 79569), (273, 71991), (351, 55993), (399, 49257), (421, 46683), (513, 38311), (741, 26523), (819, 23997), (1197, 16419), (1263, 15561), (1729, 11367), (2223, 8841), (2457, 7999), (2947, 6669), (3591, 5473), (3789, 5187)]