20384217

素因数分解:

$3^4\times 7^1\times {\mathrm{35951}}^1$

素因数の和:35970

約数の個数: 20

約数和(自身を含む): 34801536

約数和(自身を除く): 14417319

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 35951, 107853, 251657, 323559, 754971, 970677, 2264913, 2912031, 6794739, 20384217]

約数ペア:

[(1, 20384217), (3, 6794739), (7, 2912031), (9, 2264913), (21, 970677), (27, 754971), (63, 323559), (81, 251657), (189, 107853), (567, 35951)]