21097629

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19699}}^1$

素因数の和:19729

約数の個数: 24

約数和(自身を含む): 36878400

約数和(自身を除く): 15780771

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 19699, 59097, 137893, 177291, 334883, 413679, 1004649, 1241037, 2344181, 3013947, 7032543, 21097629]

約数ペア:

[(1, 21097629), (3, 7032543), (7, 3013947), (9, 2344181), (17, 1241037), (21, 1004649), (51, 413679), (63, 334883), (119, 177291), (153, 137893), (357, 59097), (1071, 19699)]