3991561

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{149}}^1$

素因数の和:288

約数の個数: 16

約数和(自身を含む): 4752000

約数和(自身を除く): 760439

約数列:

[1, 7, 43, 89, 149, 301, 623, 1043, 3827, 6407, 13261, 26789, 44849, 92827, 570223, 3991561]

約数ペア:

[(1, 3991561), (7, 570223), (43, 92827), (89, 44849), (149, 26789), (301, 13261), (623, 6407), (1043, 3827)]