21539738

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{6571}}^1$

素因数の和:6733

約数の個数: 16

約数和(自身を含む): 35488800

約数和(自身を除く): 13949062

約数列:

[1, 2, 11, 22, 149, 298, 1639, 3278, 6571, 13142, 72281, 144562, 979079, 1958158, 10769869, 21539738]

約数ペア:

[(1, 21539738), (2, 10769869), (11, 1958158), (22, 979079), (149, 144562), (298, 72281), (1639, 13142), (3278, 6571)]