12821879

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{367}}^1$

素因数の和:435

約数の個数: 24

約数和(自身を含む): 16109568

約数和(自身を除く): 3287689

約数列:

[1, 7, 23, 31, 49, 161, 217, 367, 713, 1127, 1519, 2569, 4991, 8441, 11377, 17983, 34937, 59087, 79639, 261671, 413609, 557473, 1831697, 12821879]

約数ペア:

[(1, 12821879), (7, 1831697), (23, 557473), (31, 413609), (49, 261671), (161, 79639), (217, 59087), (367, 34937), (713, 17983), (1127, 11377), (1519, 8441), (2569, 4991)]