21072429

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{6311}}^1$

素因数の和:6377

約数の個数: 24

約数和(自身を含む): 35448192

約数和(自身を除く): 14375763

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 477, 1113, 3339, 6311, 18933, 44177, 56799, 132531, 334483, 397593, 1003449, 2341381, 3010347, 7024143, 21072429]

約数ペア:

[(1, 21072429), (3, 7024143), (7, 3010347), (9, 2341381), (21, 1003449), (53, 397593), (63, 334483), (159, 132531), (371, 56799), (477, 44177), (1113, 18933), (3339, 6311)]