21000273854

素因数分解:

$2^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{11450531}}^1$

素因数の和:11450671

約数の個数: 16

約数和(自身を含む): 36275285376

約数和(自身を除く): 15275011522

約数列:

[1, 2, 7, 14, 131, 262, 917, 1834, 11450531, 22901062, 80153717, 160307434, 1500019561, 3000039122, 10500136927, 21000273854]

約数ペア:

[(1, 21000273854), (2, 10500136927), (7, 3000039122), (14, 1500019561), (131, 160307434), (262, 80153717), (917, 22901062), (1834, 11450531)]