21540464

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{122389}}^1$

素因数の和:122408

約数の個数: 20

約数和(自身を含む): 45529080

約数和(自身を除く): 23988616

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 122389, 244778, 489556, 979112, 1346279, 1958224, 2692558, 5385116, 10770232, 21540464]

約数ペア:

[(1, 21540464), (2, 10770232), (4, 5385116), (8, 2692558), (11, 1958224), (16, 1346279), (22, 979112), (44, 489556), (88, 244778), (176, 122389)]