21191084

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{1093}}^1$

素因数の和:1265

約数の個数: 24

約数和(自身を含む): 38412528

約数和(自身を除く): 17221444

約数列:

[1, 2, 4, 37, 74, 131, 148, 262, 524, 1093, 2186, 4372, 4847, 9694, 19388, 40441, 80882, 143183, 161764, 286366, 572732, 5297771, 10595542, 21191084]

約数ペア:

[(1, 21191084), (2, 10595542), (4, 5297771), (37, 572732), (74, 286366), (131, 161764), (148, 143183), (262, 80882), (524, 40441), (1093, 19388), (2186, 9694), (4372, 4847)]