21002429

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1327}}^1$

素因数の和:1377

約数の個数: 24

約数和(自身を含む): 27250560

約数和(自身を除く): 6248131

約数列:

[1, 7, 17, 19, 49, 119, 133, 323, 833, 931, 1327, 2261, 9289, 15827, 22559, 25213, 65023, 157913, 176491, 428621, 1105391, 1235437, 3000347, 21002429]

約数ペア:

[(1, 21002429), (7, 3000347), (17, 1235437), (19, 1105391), (49, 428621), (119, 176491), (133, 157913), (323, 65023), (833, 25213), (931, 22559), (1327, 15827), (2261, 9289)]