20297902

素因数分解:

$2^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1\times {\mathrm{509}}^1$

素因数の和:795

約数の個数: 16

約数和(自身を含む): 30942720

約数和(自身を除く): 10644818

約数列:

[1, 2, 127, 157, 254, 314, 509, 1018, 19939, 39878, 64643, 79913, 129286, 159826, 10148951, 20297902]

約数ペア:

[(1, 20297902), (2, 10148951), (127, 159826), (157, 129286), (254, 79913), (314, 64643), (509, 39878), (1018, 19939)]