21339929

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{479}}^1$

素因数の和:664

約数の個数: 16

約数和(自身を含む): 24192000

約数和(自身を除く): 2852071

約数列:

[1, 13, 23, 149, 299, 479, 1937, 3427, 6227, 11017, 44551, 71371, 143221, 927823, 1641533, 21339929]

約数ペア:

[(1, 21339929), (13, 1641533), (23, 927823), (149, 143221), (299, 71371), (479, 44551), (1937, 11017), (3427, 6227)]