20656438

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{40823}}^1$

素因数の和:40859

約数の個数: 16

約数和(自身を含む): 35271936

約数和(自身を除く): 14615498

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 40823, 81646, 449053, 898106, 938929, 1877858, 10328219, 20656438]

約数ペア:

[(1, 20656438), (2, 10328219), (11, 1877858), (22, 938929), (23, 898106), (46, 449053), (253, 81646), (506, 40823)]