20819148

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{247847}}^1$

素因数の和:247861

約数の個数: 24

約数和(自身を含む): 55517952

約数和(自身を除く): 34698804

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 247847, 495694, 743541, 991388, 1487082, 1734929, 2974164, 3469858, 5204787, 6939716, 10409574, 20819148]

約数ペア:

[(1, 20819148), (2, 10409574), (3, 6939716), (4, 5204787), (6, 3469858), (7, 2974164), (12, 1734929), (14, 1487082), (21, 991388), (28, 743541), (42, 495694), (84, 247847)]