20613081

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{3511}}^1$

素因数の和:3636

約数の個数: 16

約数和(自身を含む): 29219840

約数和(自身を除く): 8606759

約数列:

[1, 3, 19, 57, 103, 309, 1957, 3511, 5871, 10533, 66709, 200127, 361633, 1084899, 6871027, 20613081]

約数ペア:

[(1, 20613081), (3, 6871027), (19, 1084899), (57, 361633), (103, 200127), (309, 66709), (1957, 10533), (3511, 5871)]