20838316

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{1249}}^1$

素因数の和:1393

約数の個数: 24

約数和(自身を含む): 37730000

約数和(自身を除く): 16891684

約数列:

[1, 2, 4, 43, 86, 97, 172, 194, 388, 1249, 2498, 4171, 4996, 8342, 16684, 53707, 107414, 121153, 214828, 242306, 484612, 5209579, 10419158, 20838316]

約数ペア:

[(1, 20838316), (2, 10419158), (4, 5209579), (43, 484612), (86, 242306), (97, 214828), (172, 121153), (194, 107414), (388, 53707), (1249, 16684), (2498, 8342), (4171, 4996)]