21479224

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{15887}}^1$

素因数の和:15919

約数の個数: 24

約数和(自身を含む): 43612560

約数和(自身を除く): 22133336

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1352, 15887, 31774, 63548, 127096, 206531, 413062, 826124, 1652248, 2684903, 5369806, 10739612, 21479224]

約数ペア:

[(1, 21479224), (2, 10739612), (4, 5369806), (8, 2684903), (13, 1652248), (26, 826124), (52, 413062), (104, 206531), (169, 127096), (338, 63548), (676, 31774), (1352, 15887)]