20040891

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{1321}}^1$

素因数の和:1726

約数の個数: 16

約数和(自身を含む): 28872480

約数和(自身を除く): 8831589

約数列:

[1, 3, 13, 39, 389, 1167, 1321, 3963, 5057, 15171, 17173, 51519, 513869, 1541607, 6680297, 20040891]

約数ペア:

[(1, 20040891), (3, 6680297), (13, 1541607), (39, 513869), (389, 51519), (1167, 17173), (1321, 15171), (3963, 5057)]