18339909

素因数分解:

$3^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{4139}}^1$

素因数の和:4360

約数の個数: 16

約数和(自身を含む): 28085760

約数和(自身を除く): 9745851

約数列:

[1, 3, 7, 21, 211, 633, 1477, 4139, 4431, 12417, 28973, 86919, 873329, 2619987, 6113303, 18339909]

約数ペア:

[(1, 18339909), (3, 6113303), (7, 2619987), (21, 873329), (211, 86919), (633, 28973), (1477, 12417), (4139, 4431)]