17945978

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1\times {\mathrm{431}}^1$

素因数の和:733

約数の個数: 16

約数和(自身を含む): 27371520

約数和(自身を除く): 9425542

約数列:

[1, 2, 109, 191, 218, 382, 431, 862, 20819, 41638, 46979, 82321, 93958, 164642, 8972989, 17945978]

約数ペア:

[(1, 17945978), (2, 8972989), (109, 164642), (191, 93958), (218, 82321), (382, 46979), (431, 41638), (862, 20819)]