1390319

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:230

約数の個数: 16

約数和(自身を含む): 1689600

約数和(自身を除く): 299281

約数列:

[1, 7, 31, 43, 149, 217, 301, 1043, 1333, 4619, 6407, 9331, 32333, 44849, 198617, 1390319]

約数ペア:

[(1, 1390319), (7, 198617), (31, 44849), (43, 32333), (149, 9331), (217, 6407), (301, 4619), (1043, 1333)]