21000971704

素因数分解:

$2^3\times {\mathrm{19759}}^1\times {\mathrm{132857}}^1$

素因数の和:152622

約数の個数: 16

約数和(自身を含む): 39379111200

約数和(自身を除く): 18378139496

約数列:

[1, 2, 4, 8, 19759, 39518, 79036, 132857, 158072, 265714, 531428, 1062856, 2625121463, 5250242926, 10500485852, 21000971704]

約数ペア:

[(1, 21000971704), (2, 10500485852), (4, 5250242926), (8, 2625121463), (19759, 1062856), (39518, 531428), (79036, 265714), (132857, 158072)]