18129321

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{9923}}^1$

素因数の和:9965

約数の個数: 24

約数和(自身を含む): 30962880

約数和(自身を除く): 12833559

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 9923, 29769, 69461, 89307, 208383, 287767, 625149, 863301, 2014369, 2589903, 6043107, 18129321]

約数ペア:

[(1, 18129321), (3, 6043107), (7, 2589903), (9, 2014369), (21, 863301), (29, 625149), (63, 287767), (87, 208383), (203, 89307), (261, 69461), (609, 29769), (1827, 9923)]