18063891

素因数分解:

$3^6\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:438

約数の個数: 28

約数和(自身を含む): 27543600

約数和(自身を除く): 9479709

約数列:

[1, 3, 9, 27, 71, 81, 213, 243, 349, 639, 729, 1047, 1917, 3141, 5751, 9423, 17253, 24779, 28269, 51759, 74337, 84807, 223011, 254421, 669033, 2007099, 6021297, 18063891]

約数ペア:

[(1, 18063891), (3, 6021297), (9, 2007099), (27, 669033), (71, 254421), (81, 223011), (213, 84807), (243, 74337), (349, 51759), (639, 28269), (729, 24779), (1047, 17253), (1917, 9423), (3141, 5751)]