9961991

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:338

約数の個数: 16

約数和(自身を含む): 11172000

約数和(自身を除く): 1210009

約数列:

[1, 13, 37, 139, 149, 481, 1807, 1937, 5143, 5513, 20711, 66859, 71669, 269243, 766307, 9961991]

約数ペア:

[(1, 9961991), (13, 766307), (37, 269243), (139, 71669), (149, 66859), (481, 20711), (1807, 5513), (1937, 5143)]