21047691

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{43577}}^1$

素因数の和:43610

約数の個数: 16

約数和(自身を含む): 33467904

約数和(自身を除く): 12420213

約数列:

[1, 3, 7, 21, 23, 69, 161, 483, 43577, 130731, 305039, 915117, 1002271, 3006813, 7015897, 21047691]

約数ペア:

[(1, 21047691), (3, 7015897), (7, 3006813), (21, 1002271), (23, 915117), (69, 305039), (161, 130731), (483, 43577)]