21243747

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{34883}}^1$

素因数の和:34922

約数の個数: 16

約数和(自身を含む): 33488640

約数和(自身を除く): 12244893

約数列:

[1, 3, 7, 21, 29, 87, 203, 609, 34883, 104649, 244181, 732543, 1011607, 3034821, 7081249, 21243747]

約数ペア:

[(1, 21243747), (3, 7081249), (7, 3034821), (21, 1011607), (29, 732543), (87, 244181), (203, 104649), (609, 34883)]