215721839

素因数分解:

${\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1\times {\mathrm{1193}}^1$

素因数の和:1550

約数の個数: 16

約数和(自身を含む): 235361280

約数和(自身を除く): 19639441

約数列:

[1, 19, 31, 307, 589, 1193, 5833, 9517, 22667, 36983, 180823, 366251, 702677, 6958769, 11353781, 215721839]

約数ペア:

[(1, 215721839), (19, 11353781), (31, 6958769), (307, 702677), (589, 366251), (1193, 180823), (5833, 36983), (9517, 22667)]