209308

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:153

約数の個数: 24

約数和(自身を含む): 411264

約数和(自身を除く): 201956

約数列:

[1, 2, 4, 11, 22, 44, 67, 71, 134, 142, 268, 284, 737, 781, 1474, 1562, 2948, 3124, 4757, 9514, 19028, 52327, 104654, 209308]

約数ペア:

[(1, 209308), (2, 104654), (4, 52327), (11, 19028), (22, 9514), (44, 4757), (67, 3124), (71, 2948), (134, 1562), (142, 1474), (268, 781), (284, 737)]