21491617147

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{787}}^1\times {\mathrm{27281}}^1$

素因数の和:28099

約数の個数: 32

約数和(自身を含む): 28893602304

約数和(自身を除く): 7401985157

約数列:

[1, 7, 11, 13, 77, 91, 143, 787, 1001, 5509, 8657, 10231, 27281, 60599, 71617, 112541, 190967, 300091, 354653, 787787, 2100637, 2482571, 3901183, 21470147, 27308281, 150291029, 236171617, 279111911, 1653201319, 1953783377, 3070231021, 21491617147]

約数ペア:

[(1, 21491617147), (7, 3070231021), (11, 1953783377), (13, 1653201319), (77, 279111911), (91, 236171617), (143, 150291029), (787, 27308281), (1001, 21470147), (5509, 3901183), (8657, 2482571), (10231, 2100637), (27281, 787787), (60599, 354653), (71617, 300091), (112541, 190967)]