19929328

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{65557}}^1$

素因数の和:65584

約数の個数: 20

約数和(自身を含む): 40645960

約数和(自身を除く): 20716632

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 65557, 131114, 262228, 524456, 1048912, 1245583, 2491166, 4982332, 9964664, 19929328]

約数ペア:

[(1, 19929328), (2, 9964664), (4, 4982332), (8, 2491166), (16, 1245583), (19, 1048912), (38, 524456), (76, 262228), (152, 131114), (304, 65557)]