20153961

素因数分解:

$3^3\times {\mathrm{89}}^1\times {\mathrm{8387}}^1$

素因数の和:8485

約数の個数: 16

約数和(自身を含む): 30196800

約数和(自身を除く): 10042839

約数列:

[1, 3, 9, 27, 89, 267, 801, 2403, 8387, 25161, 75483, 226449, 746443, 2239329, 6717987, 20153961]

約数ペア:

[(1, 20153961), (3, 6717987), (9, 2239329), (27, 746443), (89, 226449), (267, 75483), (801, 25161), (2403, 8387)]