21856685

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{277}}^1\times {\mathrm{367}}^1$

素因数の和:692

約数の個数: 16

約数和(自身を含む): 27008256

約数和(自身を除く): 5151571

約数列:

[1, 5, 43, 215, 277, 367, 1385, 1835, 11911, 15781, 59555, 78905, 101659, 508295, 4371337, 21856685]

約数ペア:

[(1, 21856685), (5, 4371337), (43, 508295), (215, 101659), (277, 78905), (367, 59555), (1385, 15781), (1835, 11911)]