27720237153

素因数分解:

$3^1\times 7^1\times {\mathrm{20147}}^1\times {\mathrm{65519}}^1$

素因数の和:85676

約数の個数: 16

約数和(自身を含む): 42243102720

約数和(自身を除く): 14522865567

約数列:

[1, 3, 7, 21, 20147, 60441, 65519, 141029, 196557, 423087, 458633, 1375899, 1320011293, 3960033879, 9240079051, 27720237153]

約数ペア:

[(1, 27720237153), (3, 9240079051), (7, 3960033879), (21, 1320011293), (20147, 1375899), (60441, 458633), (65519, 423087), (141029, 196557)]