21871086

素因数分解:

$2^1\times 3^1\times {\mathrm{53}}^1\times {\mathrm{68777}}^1$

素因数の和:68835

約数の個数: 16

約数和(自身を含む): 44568144

約数和(自身を除く): 22697058

約数列:

[1, 2, 3, 6, 53, 106, 159, 318, 68777, 137554, 206331, 412662, 3645181, 7290362, 10935543, 21871086]

約数ペア:

[(1, 21871086), (2, 10935543), (3, 7290362), (6, 3645181), (53, 412662), (106, 206331), (159, 137554), (318, 68777)]