21018297

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{419}}^1\times {\mathrm{727}}^1$

素因数の和:1172

約数の個数: 16

約数和(自身を含む): 29352960

約数和(自身を除く): 8334663

約数列:

[1, 3, 23, 69, 419, 727, 1257, 2181, 9637, 16721, 28911, 50163, 304613, 913839, 7006099, 21018297]

約数ペア:

[(1, 21018297), (3, 7006099), (23, 913839), (69, 304613), (419, 50163), (727, 28911), (1257, 16721), (2181, 9637)]