21926295

素因数分解:

$3^4\times 5^1\times {\mathrm{54139}}^1$

素因数の和:54156

約数の個数: 20

約数和(自身を含む): 39305640

約数和(自身を除く): 17379345

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 54139, 162417, 270695, 487251, 812085, 1461753, 2436255, 4385259, 7308765, 21926295]

約数ペア:

[(1, 21926295), (3, 7308765), (5, 4385259), (9, 2436255), (15, 1461753), (27, 812085), (45, 487251), (81, 270695), (135, 162417), (405, 54139)]