51137457

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{263}}^1$

素因数の和:517

約数の個数: 32

約数和(自身を含む): 80289792

約数和(自身を除く): 29152335

約数列:

[1, 3, 7, 21, 47, 141, 197, 263, 329, 591, 789, 987, 1379, 1841, 4137, 5523, 9259, 12361, 27777, 37083, 51811, 64813, 86527, 155433, 194439, 259581, 362677, 1088031, 2435117, 7305351, 17045819, 51137457]

約数ペア:

[(1, 51137457), (3, 17045819), (7, 7305351), (21, 2435117), (47, 1088031), (141, 362677), (197, 259581), (263, 194439), (329, 155433), (591, 86527), (789, 64813), (987, 51811), (1379, 37083), (1841, 27777), (4137, 12361), (5523, 9259)]