8371419

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{20981}}^1$

素因数の和:21010

約数の個数: 16

約数和(自身を含む): 13428480

約数和(自身を除く): 5057061

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 20981, 62943, 146867, 398639, 440601, 1195917, 2790473, 8371419]

約数ペア:

[(1, 8371419), (3, 2790473), (7, 1195917), (19, 440601), (21, 398639), (57, 146867), (133, 62943), (399, 20981)]