15780321

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{103}}^1\times {\mathrm{587}}^1$

素因数の和:725

約数の個数: 24

約数和(自身を含む): 23849280

約数和(自身を除く): 8068959

約数列:

[1, 3, 9, 29, 87, 103, 261, 309, 587, 927, 1761, 2987, 5283, 8961, 17023, 26883, 51069, 60461, 153207, 181383, 544149, 1753369, 5260107, 15780321]

約数ペア:

[(1, 15780321), (3, 5260107), (9, 1753369), (29, 544149), (87, 181383), (103, 153207), (261, 60461), (309, 51069), (587, 26883), (927, 17023), (1761, 8961), (2987, 5283)]