21836816

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{8693}}^1$

素因数の和:8858

約数の個数: 20

約数和(自身を含む): 42583212

約数和(自身を除く): 20746396

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 8693, 17386, 34772, 69544, 139088, 1364801, 2729602, 5459204, 10918408, 21836816]

約数ペア:

[(1, 21836816), (2, 10918408), (4, 5459204), (8, 2729602), (16, 1364801), (157, 139088), (314, 69544), (628, 34772), (1256, 17386), (2512, 8693)]