20011617

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{13003}}^1$

素因数の和:13034

約数の個数: 20

約数和(自身を含む): 31469680

約数和(自身を除く): 11458063

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 13003, 39009, 117027, 247057, 351081, 741171, 1053243, 2223513, 6670539, 20011617]

約数ペア:

[(1, 20011617), (3, 6670539), (9, 2223513), (19, 1053243), (27, 741171), (57, 351081), (81, 247057), (171, 117027), (513, 39009), (1539, 13003)]