18730621

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{5563}}^1$

素因数の和:5620

約数の個数: 16

約数和(自身を含む): 23680384

約数和(自身を除く): 4949763

約数列:

[1, 7, 13, 37, 91, 259, 481, 3367, 5563, 38941, 72319, 205831, 506233, 1440817, 2675803, 18730621]

約数ペア:

[(1, 18730621), (7, 2675803), (13, 1440817), (37, 506233), (91, 205831), (259, 72319), (481, 38941), (3367, 5563)]