21292825

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1949}}^1$

素因数の和:2001

約数の個数: 24

約数和(自身を含む): 29016000

約数和(自身を除く): 7723175

約数列:

[1, 5, 19, 23, 25, 95, 115, 437, 475, 575, 1949, 2185, 9745, 10925, 37031, 44827, 48725, 185155, 224135, 851713, 925775, 1120675, 4258565, 21292825]

約数ペア:

[(1, 21292825), (5, 4258565), (19, 1120675), (23, 925775), (25, 851713), (95, 224135), (115, 185155), (437, 48725), (475, 44827), (575, 37031), (1949, 10925), (2185, 9745)]