21469131

素因数分解:

$3^4\times {\mathrm{239}}^1\times {\mathrm{1109}}^1$

素因数の和:1360

約数の個数: 20

約数和(自身を含む): 32234400

約数和(自身を除く): 10765269

約数列:

[1, 3, 9, 27, 81, 239, 717, 1109, 2151, 3327, 6453, 9981, 19359, 29943, 89829, 265051, 795153, 2385459, 7156377, 21469131]

約数ペア:

[(1, 21469131), (3, 7156377), (9, 2385459), (27, 795153), (81, 265051), (239, 89829), (717, 29943), (1109, 19359), (2151, 9981), (3327, 6453)]