20942090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{161093}}^1$

素因数の和:161113

約数の個数: 16

約数和(自身を含む): 40595688

約数和(自身を除く): 19653598

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 161093, 322186, 805465, 1610930, 2094209, 4188418, 10471045, 20942090]

約数ペア:

[(1, 20942090), (2, 10471045), (5, 4188418), (10, 2094209), (13, 1610930), (26, 805465), (65, 322186), (130, 161093)]