18984819

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{47581}}^1$

素因数の和:47610

約数の個数: 16

約数和(自身を含む): 30452480

約数和(自身を除く): 11467661

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 47581, 142743, 333067, 904039, 999201, 2712117, 6328273, 18984819]

約数ペア:

[(1, 18984819), (3, 6328273), (7, 2712117), (19, 999201), (21, 904039), (57, 333067), (133, 142743), (399, 47581)]