28765891

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{643}}^1$

素因数の和:751

約数の個数: 24

約数和(自身を含む): 37001664

約数和(自身を除く): 8235773

約数列:

[1, 7, 11, 49, 77, 83, 539, 581, 643, 913, 4067, 4501, 6391, 7073, 31507, 44737, 49511, 53369, 346577, 373583, 587059, 2615081, 4109413, 28765891]

約数ペア:

[(1, 28765891), (7, 4109413), (11, 2615081), (49, 587059), (77, 373583), (83, 346577), (539, 53369), (581, 49511), (643, 44737), (913, 31507), (4067, 7073), (4501, 6391)]