18891255

素因数分解:

$3^1\times 5^1\times {\mathrm{379}}^1\times {\mathrm{3323}}^1$

素因数の和:3710

約数の個数: 16

約数和(自身を含む): 30314880

約数和(自身を除く): 11423625

約数列:

[1, 3, 5, 15, 379, 1137, 1895, 3323, 5685, 9969, 16615, 49845, 1259417, 3778251, 6297085, 18891255]

約数ペア:

[(1, 18891255), (3, 6297085), (5, 3778251), (15, 1259417), (379, 49845), (1137, 16615), (1895, 9969), (3323, 5685)]