21451977

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{941}}^1$

素因数の和:1113

約数の個数: 24

約数和(自身を含む): 33064200

約数和(自身を除く): 11612223

約数列:

[1, 3, 9, 17, 51, 149, 153, 447, 941, 1341, 2533, 2823, 7599, 8469, 15997, 22797, 47991, 140209, 143973, 420627, 1261881, 2383553, 7150659, 21451977]

約数ペア:

[(1, 21451977), (3, 7150659), (9, 2383553), (17, 1261881), (51, 420627), (149, 143973), (153, 140209), (447, 47991), (941, 22797), (1341, 15997), (2533, 8469), (2823, 7599)]