21763868

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{9839}}^1$

素因数の和:9929

約数の個数: 24

約数和(自身を含む): 44083200

約数和(自身を除く): 22319332

約数列:

[1, 2, 4, 7, 14, 28, 79, 158, 316, 553, 1106, 2212, 9839, 19678, 39356, 68873, 137746, 275492, 777281, 1554562, 3109124, 5440967, 10881934, 21763868]

約数ペア:

[(1, 21763868), (2, 10881934), (4, 5440967), (7, 3109124), (14, 1554562), (28, 777281), (79, 275492), (158, 137746), (316, 68873), (553, 39356), (1106, 19678), (2212, 9839)]