21089428

素因数分解:

$2^2\times {\mathrm{131}}^1\times {\mathrm{167}}^1\times {\mathrm{241}}^1$

素因数の和:543

約数の個数: 24

約数和(自身を含む): 37566144

約数和(自身を除く): 16476716

約数列:

[1, 2, 4, 131, 167, 241, 262, 334, 482, 524, 668, 964, 21877, 31571, 40247, 43754, 63142, 80494, 87508, 126284, 160988, 5272357, 10544714, 21089428]

約数ペア:

[(1, 21089428), (2, 10544714), (4, 5272357), (131, 160988), (167, 126284), (241, 87508), (262, 80494), (334, 63142), (482, 43754), (524, 40247), (668, 31571), (964, 21877)]