21000955941

素因数分解:

$3^5\times 7^1\times {\mathrm{12346241}}^1$

素因数の和:12346263

約数の個数: 24

約数和(自身を含む): 35952256704

約数和(自身を除く): 14951300763

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 12346241, 37038723, 86423687, 111116169, 259271061, 333348507, 777813183, 1000045521, 2333439549, 3000136563, 7000318647, 21000955941]

約数ペア:

[(1, 21000955941), (3, 7000318647), (7, 3000136563), (9, 2333439549), (21, 1000045521), (27, 777813183), (63, 333348507), (81, 259271061), (189, 111116169), (243, 86423687), (567, 37038723), (1701, 12346241)]