199987789

素因数分解:

${\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{643}}^1$

素因数の和:880

約数の個数: 16

約数和(自身を含む): 211025920

約数和(自身を除く): 11038131

約数列:

[1, 31, 79, 127, 643, 2449, 3937, 10033, 19933, 50797, 81661, 311023, 1574707, 2531491, 6451219, 199987789]

約数ペア:

[(1, 199987789), (31, 6451219), (79, 2531491), (127, 1574707), (643, 311023), (2449, 81661), (3937, 50797), (10033, 19933)]