19997823

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{4441}}^1$

素因数の和:4542

約数の個数: 16

約数和(自身を含む): 28428800

約数和(自身を除く): 8430977

約数列:

[1, 3, 19, 57, 79, 237, 1501, 4441, 4503, 13323, 84379, 253137, 350839, 1052517, 6665941, 19997823]

約数ペア:

[(1, 19997823), (3, 6665941), (19, 1052517), (57, 350839), (79, 253137), (237, 84379), (1501, 13323), (4441, 4503)]