19628368

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{64567}}^1$

素因数の和:64594

約数の個数: 20

約数和(自身を含む): 40032160

約数和(自身を除く): 20403792

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 64567, 129134, 258268, 516536, 1033072, 1226773, 2453546, 4907092, 9814184, 19628368]

約数ペア:

[(1, 19628368), (2, 9814184), (4, 4907092), (8, 2453546), (16, 1226773), (19, 1033072), (38, 516536), (76, 258268), (152, 129134), (304, 64567)]