21162009

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{433}}^1\times {\mathrm{1481}}^1$

素因数の和:1928

約数の個数: 16

約数和(自身を含む): 30873024

約数和(自身を除く): 9711015

約数列:

[1, 3, 11, 33, 433, 1299, 1481, 4443, 4763, 14289, 16291, 48873, 641273, 1923819, 7054003, 21162009]

約数ペア:

[(1, 21162009), (3, 7054003), (11, 1923819), (33, 641273), (433, 48873), (1299, 16291), (1481, 14289), (4443, 4763)]