21435267

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{19259}}^1$

素因数の和:19322

約数の個数: 16

約数和(自身を含む): 33281280

約数和(自身を除く): 11846013

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 19259, 57777, 134813, 404439, 1020727, 3062181, 7145089, 21435267]

約数ペア:

[(1, 21435267), (3, 7145089), (7, 3062181), (21, 1020727), (53, 404439), (159, 134813), (371, 57777), (1113, 19259)]