20894535

素因数分解:

$3^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1493}}^1$

素因数の和:1815

約数の個数: 24

約数和(自身を含む): 36357984

約数和(自身を除く): 15463449

約数列:

[1, 3, 5, 9, 15, 45, 311, 933, 1493, 1555, 2799, 4479, 4665, 7465, 13437, 13995, 22395, 67185, 464323, 1392969, 2321615, 4178907, 6964845, 20894535]

約数ペア:

[(1, 20894535), (3, 6964845), (5, 4178907), (9, 2321615), (15, 1392969), (45, 464323), (311, 67185), (933, 22395), (1493, 13995), (1555, 13437), (2799, 7465), (4479, 4665)]