21979342

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{20389}}^1$

素因数の和:20416

約数の個数: 24

約数和(自身を含む): 41840280

約数和(自身を除く): 19860938

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 20389, 40778, 142723, 224279, 285446, 448558, 999061, 1569953, 1998122, 3139906, 10989671, 21979342]

約数ペア:

[(1, 21979342), (2, 10989671), (7, 3139906), (11, 1998122), (14, 1569953), (22, 999061), (49, 448558), (77, 285446), (98, 224279), (154, 142723), (539, 40778), (1078, 20389)]