18720477

素因数分解:

$3^5\times {\mathrm{41}}^1\times {\mathrm{1879}}^1$

素因数の和:1935

約数の個数: 24

約数和(自身を含む): 28741440

約数和(自身を除く): 10020963

約数列:

[1, 3, 9, 27, 41, 81, 123, 243, 369, 1107, 1879, 3321, 5637, 9963, 16911, 50733, 77039, 152199, 231117, 456597, 693351, 2080053, 6240159, 18720477]

約数ペア:

[(1, 18720477), (3, 6240159), (9, 2080053), (27, 693351), (41, 456597), (81, 231117), (123, 152199), (243, 77039), (369, 50733), (1107, 16911), (1879, 9963), (3321, 5637)]