21100856

素因数分解:

$2^3\times 7^1\times {\mathrm{376801}}^1$

素因数の和:376814

約数の個数: 16

約数和(自身を含む): 45216240

約数和(自身を除く): 24115384

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 376801, 753602, 1507204, 2637607, 3014408, 5275214, 10550428, 21100856]

約数ペア:

[(1, 21100856), (2, 10550428), (4, 5275214), (7, 3014408), (8, 2637607), (14, 1507204), (28, 753602), (56, 376801)]