28166677

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{181}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 36900864

約数和(自身を除く): 8734187

約数列:

[1, 7, 11, 43, 47, 77, 181, 301, 329, 473, 517, 1267, 1991, 2021, 3311, 3619, 7783, 8507, 13937, 14147, 22231, 54481, 59549, 85613, 93577, 155617, 365801, 599291, 655039, 2560607, 4023811, 28166677]

約数ペア:

[(1, 28166677), (7, 4023811), (11, 2560607), (43, 655039), (47, 599291), (77, 365801), (181, 155617), (301, 93577), (329, 85613), (473, 59549), (517, 54481), (1267, 22231), (1991, 14147), (2021, 13937), (3311, 8507), (3619, 7783)]