21729032

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{208933}}^1$

素因数の和:208952

約数の個数: 16

約数和(自身を含む): 43876140

約数和(自身を除く): 22147108

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 208933, 417866, 835732, 1671464, 2716129, 5432258, 10864516, 21729032]

約数ペア:

[(1, 21729032), (2, 10864516), (4, 5432258), (8, 2716129), (13, 1671464), (26, 835732), (52, 417866), (104, 208933)]