21700665

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{68891}}^1$

素因数の和:68909

約数の個数: 24

約数和(自身を含む): 42988608

約数和(自身を除く): 21287943

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 68891, 206673, 344455, 482237, 620019, 1033365, 1446711, 2411185, 3100095, 4340133, 7233555, 21700665]

約数ペア:

[(1, 21700665), (3, 7233555), (5, 4340133), (7, 3100095), (9, 2411185), (15, 1446711), (21, 1033365), (35, 620019), (45, 482237), (63, 344455), (105, 206673), (315, 68891)]