20570809

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{1907}}^1$

素因数の和:2004

約数の個数: 16

約数和(自身を含む): 24910848

約数和(自身を除く): 4340039

約数列:

[1, 7, 23, 67, 161, 469, 1541, 1907, 10787, 13349, 43861, 127769, 307027, 894383, 2938687, 20570809]

約数ペア:

[(1, 20570809), (7, 2938687), (23, 894383), (67, 307027), (161, 127769), (469, 43861), (1541, 13349), (1907, 10787)]