20390319

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{14249}}^1$

素因数の和:14311

約数の個数: 16

約数和(自身を含む): 30780000

約数和(自身を除く): 10389681

約数列:

[1, 3, 9, 27, 53, 159, 477, 1431, 14249, 42747, 128241, 384723, 755197, 2265591, 6796773, 20390319]

約数ペア:

[(1, 20390319), (3, 6796773), (9, 2265591), (27, 755197), (53, 384723), (159, 128241), (477, 42747), (1431, 14249)]