21036616

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{154681}}^1$

素因数の和:154704

約数の個数: 16

約数和(自身を含む): 41764140

約数和(自身を除く): 20727524

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 154681, 309362, 618724, 1237448, 2629577, 5259154, 10518308, 21036616]

約数ペア:

[(1, 21036616), (2, 10518308), (4, 5259154), (8, 2629577), (17, 1237448), (34, 618724), (68, 309362), (136, 154681)]