20512142649

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{5388007}}^1$

素因数の和:5388066

約数の個数: 20

約数和(自身を含む): 31293550464

約数和(自身を除く): 10781407815

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 5388007, 16164021, 48492063, 145476189, 253236329, 436428567, 759708987, 2279126961, 6837380883, 20512142649]

約数ペア:

[(1, 20512142649), (3, 6837380883), (9, 2279126961), (27, 759708987), (47, 436428567), (81, 253236329), (141, 145476189), (423, 48492063), (1269, 16164021), (3807, 5388007)]