2987999

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{277}}^1$

素因数の和:374

約数の個数: 16

約数和(自身を含む): 3629568

約数和(自身を除く): 641569

約数列:

[1, 7, 23, 67, 161, 277, 469, 1541, 1939, 6371, 10787, 18559, 44597, 129913, 426857, 2987999]

約数ペア:

[(1, 2987999), (7, 426857), (23, 129913), (67, 44597), (161, 18559), (277, 10787), (469, 6371), (1541, 1939)]