21393267

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{24847}}^1$

素因数の和:24898

約数の個数: 16

約数和(自身を含む): 33395712

約数和(自身を除く): 12002445

約数列:

[1, 3, 7, 21, 41, 123, 287, 861, 24847, 74541, 173929, 521787, 1018727, 3056181, 7131089, 21393267]

約数ペア:

[(1, 21393267), (3, 7131089), (7, 3056181), (21, 1018727), (41, 521787), (123, 173929), (287, 74541), (861, 24847)]