18587871

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1531}}^1$

素因数の和:1627

約数の個数: 24

約数和(自身を含む): 28679040

約数和(自身を除く): 10091169

約数列:

[1, 3, 9, 19, 57, 71, 171, 213, 639, 1349, 1531, 4047, 4593, 12141, 13779, 29089, 87267, 108701, 261801, 326103, 978309, 2065319, 6195957, 18587871]

約数ペア:

[(1, 18587871), (3, 6195957), (9, 2065319), (19, 978309), (57, 326103), (71, 261801), (171, 108701), (213, 87267), (639, 29089), (1349, 13779), (1531, 12141), (4047, 4593)]