81838561

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{18587}}^1$

素因数の和:18648

約数の個数: 16

約数和(自身を含む): 101713536

約数和(自身を除く): 19874975

約数列:

[1, 7, 17, 37, 119, 259, 629, 4403, 18587, 130109, 315979, 687719, 2211853, 4814033, 11691223, 81838561]

約数ペア:

[(1, 81838561), (7, 11691223), (17, 4814033), (37, 2211853), (119, 687719), (259, 315979), (629, 130109), (4403, 18587)]