18008739

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{9857}}^1$

素因数の和:9899

約数の個数: 24

約数和(自身を含む): 30756960

約数和(自身を除く): 12748221

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 9857, 29571, 68999, 88713, 206997, 285853, 620991, 857559, 2000971, 2572677, 6002913, 18008739]

約数ペア:

[(1, 18008739), (3, 6002913), (7, 2572677), (9, 2000971), (21, 857559), (29, 620991), (63, 285853), (87, 206997), (203, 88713), (261, 68999), (609, 29571), (1827, 9857)]