18939338

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{439}}^1$

素因数の和:542

約数の個数: 32

約数和(自身を含む): 32503680

約数和(自身を除く): 13564342

約数列:

[1, 2, 11, 22, 37, 53, 74, 106, 407, 439, 583, 814, 878, 1166, 1961, 3922, 4829, 9658, 16243, 21571, 23267, 32486, 43142, 46534, 178673, 255937, 357346, 511874, 860879, 1721758, 9469669, 18939338]

約数ペア:

[(1, 18939338), (2, 9469669), (11, 1721758), (22, 860879), (37, 511874), (53, 357346), (74, 255937), (106, 178673), (407, 46534), (439, 43142), (583, 32486), (814, 23267), (878, 21571), (1166, 16243), (1961, 9658), (3922, 4829)]