21728824

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{208931}}^1$

素因数の和:208950

約数の個数: 16

約数和(自身を含む): 43875720

約数和(自身を除く): 22146896

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 208931, 417862, 835724, 1671448, 2716103, 5432206, 10864412, 21728824]

約数ペア:

[(1, 21728824), (2, 10864412), (4, 5432206), (8, 2716103), (13, 1671448), (26, 835724), (52, 417862), (104, 208931)]