21054328

素因数分解:

$2^3\times {\mathrm{157}}^1\times {\mathrm{16763}}^1$

素因数の和:16926

約数の個数: 16

約数和(自身を含む): 39730680

約数和(自身を除く): 18676352

約数列:

[1, 2, 4, 8, 157, 314, 628, 1256, 16763, 33526, 67052, 134104, 2631791, 5263582, 10527164, 21054328]

約数ペア:

[(1, 21054328), (2, 10527164), (4, 5263582), (8, 2631791), (157, 134104), (314, 67052), (628, 33526), (1256, 16763)]