20902294

素因数分解:

$2^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{18899}}^1$

素因数の和:18987

約数の個数: 16

約数和(自身を含む): 36288000

約数和(自身を除く): 15385706

約数列:

[1, 2, 7, 14, 79, 158, 553, 1106, 18899, 37798, 132293, 264586, 1493021, 2986042, 10451147, 20902294]

約数ペア:

[(1, 20902294), (2, 10451147), (7, 2986042), (14, 1493021), (79, 264586), (158, 132293), (553, 37798), (1106, 18899)]