21520646

素因数分解:

$2^1\times 7^1\times {\mathrm{953}}^1\times {\mathrm{1613}}^1$

素因数の和:2575

約数の個数: 16

約数和(自身を含む): 36954144

約数和(自身を除く): 15433498

約数列:

[1, 2, 7, 14, 953, 1613, 1906, 3226, 6671, 11291, 13342, 22582, 1537189, 3074378, 10760323, 21520646]

約数ペア:

[(1, 21520646), (2, 10760323), (7, 3074378), (14, 1537189), (953, 22582), (1613, 13342), (1906, 11291), (3226, 6671)]