21366849

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{53551}}^1$

素因数の和:53580

約数の個数: 16

約数和(自身を含む): 34273280

約数和(自身を除く): 12906431

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 53551, 160653, 374857, 1017469, 1124571, 3052407, 7122283, 21366849]

約数ペア:

[(1, 21366849), (3, 7122283), (7, 3052407), (19, 1124571), (21, 1017469), (57, 374857), (133, 160653), (399, 53551)]