128485889

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{659}}^1$

素因数の和:869

約数の個数: 24

約数和(自身を含む): 157101120

約数和(自身を除く): 28615231

約数列:

[1, 7, 23, 49, 161, 173, 659, 1127, 1211, 3979, 4613, 8477, 15157, 27853, 32291, 106099, 114007, 194971, 742693, 798049, 2622161, 5586343, 18355127, 128485889]

約数ペア:

[(1, 128485889), (7, 18355127), (23, 5586343), (49, 2622161), (161, 798049), (173, 742693), (659, 194971), (1127, 114007), (1211, 106099), (3979, 32291), (4613, 27853), (8477, 15157)]