291220124

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{430799}}^1$

素因数の和:430829

約数の個数: 18

約数和(自身を含む): 551854800

約数和(自身を除く): 260634676

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 430799, 861598, 1723196, 5600387, 11200774, 22401548, 72805031, 145610062, 291220124]

約数ペア:

[(1, 291220124), (2, 145610062), (4, 72805031), (13, 22401548), (26, 11200774), (52, 5600387), (169, 1723196), (338, 861598), (676, 430799)]