21184144

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{13109}}^1$

素因数の和:13218

約数の個数: 20

約数和(自身を含む): 41453820

約数和(自身を除く): 20269676

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 13109, 26218, 52436, 104872, 209744, 1324009, 2648018, 5296036, 10592072, 21184144]

約数ペア:

[(1, 21184144), (2, 10592072), (4, 5296036), (8, 2648018), (16, 1324009), (101, 209744), (202, 104872), (404, 52436), (808, 26218), (1616, 13109)]