28129923

素因数分解:

$3^6\times {\mathrm{47}}^1\times {\mathrm{821}}^1$

素因数の和:886

約数の個数: 28

約数和(自身を含む): 43125408

約数和(自身を除く): 14995485

約数列:

[1, 3, 9, 27, 47, 81, 141, 243, 423, 729, 821, 1269, 2463, 3807, 7389, 11421, 22167, 34263, 38587, 66501, 115761, 199503, 347283, 598509, 1041849, 3125547, 9376641, 28129923]

約数ペア:

[(1, 28129923), (3, 9376641), (9, 3125547), (27, 1041849), (47, 598509), (81, 347283), (141, 199503), (243, 115761), (423, 66501), (729, 38587), (821, 34263), (1269, 22167), (2463, 11421), (3807, 7389)]