20804553

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{10007}}^1$

素因数の和:10034

約数の個数: 32

約数和(自身を含む): 38430720

約数和(自身を除く): 17626167

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 99, 189, 231, 297, 693, 2079, 10007, 30021, 70049, 90063, 110077, 210147, 270189, 330231, 630441, 770539, 990693, 1891323, 2311617, 2972079, 6934851, 20804553]

約数ペア:

[(1, 20804553), (3, 6934851), (7, 2972079), (9, 2311617), (11, 1891323), (21, 990693), (27, 770539), (33, 630441), (63, 330231), (77, 270189), (99, 210147), (189, 110077), (231, 90063), (297, 70049), (693, 30021), (2079, 10007)]