21168885

素因数分解:

$3^1\times 5^1\times {\mathrm{227}}^1\times {\mathrm{6217}}^1$

素因数の和:6452

約数の個数: 16

約数和(自身を含む): 34024896

約数和(自身を除く): 12856011

約数列:

[1, 3, 5, 15, 227, 681, 1135, 3405, 6217, 18651, 31085, 93255, 1411259, 4233777, 7056295, 21168885]

約数ペア:

[(1, 21168885), (3, 7056295), (5, 4233777), (15, 1411259), (227, 93255), (681, 31085), (1135, 18651), (3405, 6217)]