21457806

素因数分解:

$2^1\times 3^1\times {\mathrm{907}}^1\times {\mathrm{3943}}^1$

素因数の和:4855

約数の個数: 16

約数和(自身を含む): 42973824

約数和(自身を除く): 21516018

約数列:

[1, 2, 3, 6, 907, 1814, 2721, 3943, 5442, 7886, 11829, 23658, 3576301, 7152602, 10728903, 21457806]

約数ペア:

[(1, 21457806), (2, 10728903), (3, 7152602), (6, 3576301), (907, 23658), (1814, 11829), (2721, 7886), (3943, 5442)]