21651014

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{12781}}^1$

素因数の和:12812

約数の個数: 24

約数和(自身を含む): 40800144

約数和(自身を除く): 19149130

約数列:

[1, 2, 7, 11, 14, 22, 77, 121, 154, 242, 847, 1694, 12781, 25562, 89467, 140591, 178934, 281182, 984137, 1546501, 1968274, 3093002, 10825507, 21651014]

約数ペア:

[(1, 21651014), (2, 10825507), (7, 3093002), (11, 1968274), (14, 1546501), (22, 984137), (77, 281182), (121, 178934), (154, 140591), (242, 89467), (847, 25562), (1694, 12781)]