21101157

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{30449}}^1$

素因数の和:30473

約数の個数: 24

約数和(自身を含む): 38001600

約数和(自身を除く): 16900443

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 231, 693, 30449, 91347, 213143, 274041, 334939, 639429, 1004817, 1918287, 2344573, 3014451, 7033719, 21101157]

約数ペア:

[(1, 21101157), (3, 7033719), (7, 3014451), (9, 2344573), (11, 1918287), (21, 1004817), (33, 639429), (63, 334939), (77, 274041), (99, 213143), (231, 91347), (693, 30449)]