19997504

素因数分解:

$2^6\times {\mathrm{41}}^1\times {\mathrm{7621}}^1$

素因数の和:7674

約数の個数: 28

約数和(自身を含む): 40655748

約数和(自身を除く): 20658244

約数列:

[1, 2, 4, 8, 16, 32, 41, 64, 82, 164, 328, 656, 1312, 2624, 7621, 15242, 30484, 60968, 121936, 243872, 312461, 487744, 624922, 1249844, 2499688, 4999376, 9998752, 19997504]

約数ペア:

[(1, 19997504), (2, 9998752), (4, 4999376), (8, 2499688), (16, 1249844), (32, 624922), (41, 487744), (64, 312461), (82, 243872), (164, 121936), (328, 60968), (656, 30484), (1312, 15242), (2624, 7621)]